i spoke before about the bear, hippopotamus, and i think that was a part of the change of names. i you know did that if it is a hippopotamus, it has a big size to him and other should be an enlarged area for the hippo to rest. i looked at the location out there. they have the elephant a long time ago, her old revving tree, that would not help the hippo too much if it is hot. the few days that we get hot weather, that is. so if there would be slight changes in the hippo's quarters to make it more conducive to a hot day, summertime, i think that might be a little bit better for the hippo rather than the small pool he would be stuck in and it would be hard on his homeostasis, staying warm, keeping warm. i do not like it or you do not have a flat area somewhere where the big fellow, the bear can step out of the pool and get a good rest not in the water, such as when he has to have his bowel movements. that used to be a big thing to do, go out there and watch the zoo when you are a kid. and when the bowel movements happened -- i do not think that is too nice for the hippo would be in

. >> reporter: what parent doesn't need a plastic hippopotamus to store your kid's teeth?eth fall out, just clue them into path. >> you can get a first bump from the thand man invented in. is one of just 4,000 entryes that walmart gets. they ask at home tinkers to post videos. >> hi this is richard. >> this is sam. >> reporter: you see everything from shorts made of towels to tools for cleaning up after your dog. >> reporter: it's ingenuity at its best. lynn wright is a 58-year-old former day care worker in south carolina. >> i'm typing a lot and my wrist would always get tired. >> reporter: she never invented anything but invented a wrist pill low. walmart says it will give the winner of the product a chance to sell the product on the retail shelves. at the very least, they deserve a first bump. john berman, abc news, new york. >> maybe you can win the walmart challenge. thank you for watching. we are always on abcnews.com, "nightline" later. we will see you tomorrow. captioned by closed captioning services, inc.

. >> reporter: what parent doesn't need a plastic hippopotamus to store your kids' teeth.c doesn't need a sealable germ face mask that can also withstand pepper spray in inventions so creative, even thomas edison would give a fist-pump. if he's not around, you can get one from the plastic hand this guy invented. >> you the man. >> reporter: these are just some of the 4,000-plus entries in walmart's get on the shelf campaign. they've asked everyday, at-home tinkering, to post videos of their best inventions. >> hi, this is richard. >> my name is larry herring. >> this is sam. >> reporter: you see everything from shorts made of towels, to tools to avoid the agony of cleaning up after your dog. >> position it under your dog's tushy. >> reporter: it is honest american ingenuity at its best. lynn write is a 58-year-old former day care worker in south carolina. >> it happened a lot and my wrist would get tired. >> reporter: she had never invented anything. got out her sewing needle and came up with an idea for a wrist pillow. so, what's her dream now? >> get this on the market.

. >> reporter: what parent doesn't need a plastic hippopotamus to store your kid's teeth?eth fall out, just glue them into place. >> reporter: what hypochondriac doesn't need a fats mask that can also rith stand pepper spray? inventions so creative, even thomas edison would give a fist bump. if he is not arnold, you can get one from this man. these are just some of the 4,000 plus entries that walmart gets. they ask at home tinkers to post videos. >> hi this is richard. >> this is sam. >> reporter: you see everything from shorts made of towels to tools for cleaning up after your dog. >> reporter:. >> position it under your dog's tushy. >> reporter: it's ingenuity at its best. lynn wright is a 58-year-old former day care worker in south carolina. >> i'm typing a lot and my wrist would always get tired. >> reporter: she never invented anything but invented a wrist pillow. what is your dream now? >> get this on the market and maybe sell millions of them. >> reporter: walmarts says it will give the winner of the product a chance to sell the product on the retail shelves. at the

the others were carved out of hippopotamus ivory. it was common in the 18th century for poor people to sell their teeth and there were dentists who made false teeth, and washington have several pairs of dentures throughout his lifetime, and he was probably buried with one set and so those three that i showed are not the only dentures' he ever had. but there is no question about those. there was quite a bit of dentistry going on far more than i ever would have dreamed before doing this book and with vose teeth and the fact that he lost teeth was a huge part of recreating these figures and that told that she put his face and his shawls which made huge difference to. he's not the only one in his day that didn't have a lot of teeth so to be in the public eye as he was and to have dentures like that when he. he had a lot of pain with his teeth it was difficult to. thank you very much for coming to see this presentation tonight and it's been an honor and a privilege. thank you. [applause] >>> now more from little rock. book tv visited the

the others were carved out of hippopotamus ivory with human teeth and some of those. it was common in the 18th century for poor people to sell their teeth. and the retentive soon made false teeth and washington had several pairs of dentures throughout his lifetime and he was probably. with one that periods of those three i showed are not the only dentures he ever had. but they are the three that there is no question about. but there is quite a bit dentistry going on, far more than i ever would've dreamed before doing this book. but those teeth than the fact that he lost he was a huge part of re-creating these figures because that really told them about the shape of his faith in the shape of his shop, which made huge, huge difference. so it is sort of -- to me it sort of is that thing. of course he's not the only one in his day who didn't have a lot teeth, but to be in the public eye as he was in two of dentures like that was a struggle. yet a lot of pain with his teeth and it was difficult. well, thank you very much for coming to see this presentation tonight. it has

. >> what parent doesn't need a classic hippopotamus to score the kid's teeth. >> as they fall out, blueinto place. >> what hypochondriac doesn't need a portable face mask that can also withstand pepper spray. inventions so creative even thomas edison would give a fist pump on if he is not around get one from the plastic one that guy invented. these are the 4,000try 4,000 en wal-mart's get on the shelf campaign. >> hi, this is richard. >> i'm larry herring. >> it this is sam. >> everything from tools to avoid the agony of cleaning up after your dog. >> and position it under your dog's tushie. >> americatushi. >> she had never invented anything but got out her sewing needles and came up with an idea for a wrist pillow. what is her dream now? >> get this on the market and maybe sell millions of them. >> wal-mart says it will give the winner of the contest a chance to sell the products on the mega retailer's shelves. at the very least, they deserve a fist pump. >> oh, yeah. >> john berman, abc news, new york. >> good ideas in there and some dumb ones. i like the wrist thing that is lev. >>>

south africa, a wild life rescue, welcoming one of the rarest animal, a hippopotamus and this princereatment. giving him a post meal bath to keep the skin moist and he'll spend a life of luxury if in the refuge after being rejected by his mom at birth. and that's a trip around the world in 80 seconds. a new and large study tracking the health of 60,000 nurses. finding women any type of hormones use for menopause, and combination of estrogen and progesterone can have the risk. it's thought that women who don't have a uterus anymore can take it. and estrogen for those women increases risk for breast cancer. a dire warning after the tsunami slams northern japan. why officials now say it could happen again and if it does, it will be much worse. plus, treasury from tragedy at sea. find out how much it would cost to take home rare artifacts from the world's most famous ship wreck. >> and now we know it could happen again. scientists say if a powerful earthquake ever hit japan's southern coast like the one that slammed into the northern coast we could see a giant tsunami and be larger than

. >> reporter: what parent doesn't need a plastic hippopotamus to store your kids' teeth. >> as the teethimply glue them into place. >> reporter: what hypochondriac doesn't need a germ resistant face mask that can also withstand pepper spray? inventions so creative, even thomas edison would give a bump her if he's not around, get one from the plastic hand this guy invented. these are just some of the 4,000-plus entries in walmart's get on the shelf campaign. they asked everyday at-home tinkerers to post videos of their best inventions. >> hi. this is richard. >> my name is larry herring. >> this is sam. >> you see everything from shorts made of towels to tools to avoid the agony of cleaning up after your dog. >> and position it under your dog's tushy. >> it is honest american ingenuity at its best. lynn wright is a 58-year-old former day care worker in south carolina. >> i'm typing along and my wrist would always get tired. >> reporter: she had never invented anything but got out her sewing needle and came up with a wrist pillow. what's her dream now? >> get this on the market and maybe s