Oh that is cool. One of the best things about this stuff (that you said you are giving to the kids) is that it could inspire a love of science/math/curiosity/etc.. Not just being a idiot box like a game station.
Very nice!
My kids are all grown now. They are getting interested in 3D printing now though after seeing the stuff I have been making.
Ehh, grown kids can still be nerds. Besides, if they have kids then they can pass that knowledge/passion down too.