These were just a round red plastic rim of 6 or 8 shots.
A few minutes ago, I was wondering what ever happened to all these great toys. Then you reminded me. Many were confiscated at school!
So, we had to make covert ones. Bought ten cent ballpoint pens, and using a bobby pin and the original spring, put some Eddy Lites in there, and when you pulled and released the trigger, it would be like a stink bomb, ressembling a pen.