
Flowbee Back in the early 1950s, comic books were still around. My Favorite was the Katzenjammer Kids, although those were hard to find. In the back of the comic, I would always like to look to see what quirky items were being advertised: X-Ray Glasses: These were classic comic book ad staples, promising the ability to see through objects, although kids soon found they were just cardboard with a few colored lenses. A real gip. Invisible Ink Kits: These kits included pens and special ink that could be used to write secret...