I bought this Hallowe'en Shrinky Dink kit for Penny, on a whim. I fondly remembered Shrinky Dinks from when I was a kid and thought she might enjoy it. (I mentioned it to Matt, who said he'd never heard of it. I was shocked -- I thought every child of the 70s had Shrinky Dinks!)
They're just as fun as I remember. For an hour or so, Penny colored and I cut, punched, baked, and assembled little plastic Hallowe'en decorations. We peered in the oven to watch and marvel as the plastic sheets curled and shriveled and re-formed at a quarter their original size. Then Penny hung them on the little decorative tree, and we were both as pleased as punch with the results; only one of the two dozen or so pieces got stuck to itself and refused to flatten.
I saved the scraps that were big enough that we might be able to do something with them, so maybe later we'll try some freehand pictures and see how those go.
I'm definitely getting more of these. And I might even share some of it with Penny.