Swing Wing
This toy was like a hula hoop for your head! You’re supposed to move your head, neck, and body in a circular motion, and the hula hoop on your hat spins around. The toy was introduced to the world in 1965 and it was created by Transogram Games. I don’t know how anyone thought this would be a good idea.
Source: JibJab!
Swinging your head in such a motion can actually cause irreparable damage to the spine and neck. This is obviously more dangerous when it comes to children. The toy was released way back in the 60s, but was ultimately taken off of the shelves. I guess it didn’t take long for people to realize that the Swing Wing was not a safe toy.