(Photo via grickily's photostream on Flickr.)

Crazy Foam, basically an aerosol can of sudsing bath soap, was beautifully packaged in fabulous colorful cans that dispensed shaving-cream-like foam through clever orifices in the top. Oh, how I cried and wailed for a parent or guardian to purchase can after can of this stuff for me. The cans were adored with generic fun designs in the late 60s, but by the early 70s they were (less cleverly) transformed into superheroes that inexplicably foamed at the mouth.