Parents' annoyance level: 4/10. There's nothing like letting your child play with molten plastic.

Creepy Crawlers was a lot like the Easy Bake Oven, only instead of a cake that tastes like plastic, kids made actual plastic they melted themselves with a light bulb. Eh, it was better than the '60s version our parents enjoyed, where they melted the plastic at 390 degrees atop an open-face electric hot plate oven. Safety regulations made us soft.