Actually, my kits are more interested in rolled up pieces of aluminum foil or paper, milk bottle rings and elastics (which I don't let them play with because of the danger of them swallowing), as well as the magnets from my fridge which they somehow manage to get to the floor. Oh yeah, can't forget the old pen and pencils laying around. That's kind of why I don't waste the money buying toys at the store. That is except for the furry rattling mice. They go NUTS over them, especially after a little hit of catnip.