In 2008, children are sent home from school for having a keychain in the shape of a gun. Some are expelled for a day.
In 2008, a man is not allowed to board an airplane, because he is wearing a t-shirt with a picture of a Transformer robot on it. The reason is that the robot in the picture is holding a large gun.
In 1966, the Mattel company sells Mattel Agent Zero M Sonic Blaster 5530. It is given a "not acceptable" rating by Consumer Reports because it uses compressed air to fire a blast of air and sound at 157 decibels. The product is not removed from the market. Man, I wish I had one of them.
UPDATE: Please don't combine the 5530 with this: