-elissa: any idea, if i want to make, model car, how long would it take and how much would it cost? can do are so different. >> there really are. it depends on the level of complexity, whether it has moving parts. you can also vary the level of quality that you're looking for. if you just want to start and have a prototype that is very basic or want one that is detailed. so it really is going to depen. also it depends on whether you did the design yourself or if you're looking for assistance with that portion of the item. melissa: so you will have someone in the store that ca help with the design? >> we will either have someone in the store environmentor connected with companies that can do that. having that file and design complete is the key part to being able to link it. melissa: san dgo this weekend in d.c. very interesting. thank you for coming on. >> thank you. melissa: up next, the world's first ste to amber is made. best to say, it needs ketchup. it's all been "money." you can never have too much "money" were tested burgers. ♪ >> is time for "spare change" they gave rodrique