I don't know why, but my kids seem to have the most fun playing with things that aren't really meant to be entertaining.  I wish I was creative enough to find so much fun that I could play for over an hour straight with some large tupperwares. 

I feel like I am constantly telling these boys not to play with my wisks and wooden spoons around the house :)  For the most part, I love their inventiveness, but I sure get sick of cleaning my kitchenware all the time.