it's a rare carcinoma. now he gets to smash a replica of it. >> what a great idea to great a 3-d model of that. what a neat way to use the technology. >> do, at university of michigan health system came up with the idea to make a 3-d replica. all the kids in his class encouraged him and they wanted to bash boris. they paintsed it. they put tapioca and rice krispies in it. that's what oozed out. the doctors said that was the first time they saw a big smile on his face and that encouraged him so much that a donor has decided to donate enough money so they can make 150 replicas for other children to smash like that. >> they wanted to say that they are not letting this tumor take him over. >> it was a teachable moment. so clever of them to do it. get everybody emotionally involved but everybody scientifically understanding what's happening. >> he's batting it with a team behind him. the tumor was removed back in march in a 10 our surgery. they had to remove it from his voice box. he still has to undergo a few m