Stamp animals 3D print model

My two daughters, twins, did like a most playing with play dough. That's why I was trying to find a toy that would elevate a play dough to a level where my kids can learn also something new. Unfortunately, I didn't find any and decided to design my own toy.I was reading everywhere that screwing movement is the best one to improve fine motor skills and hand-eye coordination. Lids of PET bottles would work fine however my daughters didn't like it...Also, I did find very interesting article about a fact, that the top view of objects is very unusual for kids and that they must focus more when trying to recognize the thing. As they did like the most a cat, a dog and a rabbit the choice was obvious.

And that was a begging of an idea for the changeable screw play dough stamps with animals.

Models are .STL