They’re snaps. Usually found around 4th of July. You throw them at the ground (or people, your choice) and they make a very loud cracking/pop sound upon impact with a hard surface. Generally safe for kids with supervision. Definitely not marijuana.
If a pop that quiet makes you shit yourself then you're easily frightened. The red ones (not even the whoppers, just the small red ones) make a much more respectable bang. These paper pissers can be squeezed in your fingers safely.
I remember years ago when it was dark about 8 at night and I was walking to the store to buy something and I had these in my pocket and occasionally as I was walking I threw them. I was going round a corner as I threw one, apparently a guy was walking in the other side so when I threw it he screamed and jumped. He tried to play it off and I tried not to die of laughter as I was walking away
Make the victim shit themselves
40 year-old me: "ooohhh, golf tees!"