You didn't mention his age but I have a 2 year old girl like that. So this past month I had a theme about insects and we made pompom ants, a styrofoam ball spider with googly eyes and pipecleaner legs, a pipecleaner/pompom grasshopper, and an egg carton insect - not sure what that one is really, haha. Anyway, I taught the children that bugs should live outside, not in the house so it's ok to squash them inside but to leave them alone outside. My little dcgirl is doing much better now that I taught her that bugs just do what bugs are supposed to do.......but outside!