What is pop pops?

Pop pops are a type of novelty toy that has been around for over 100 years. They consist of small pellets or "snaps" of a type of plastic that contain a small amount of a silver fulminate compound. When the pellets are thrown onto a hard surface, they make a popping sound, similar to the sound of a firecracker. Pop pops are often sold in small paper packets and are popular as party favors or small gifts. While they are generally considered safe, they can be a choking hazard for young children and should be used under adult supervision. Some countries have banned the sale or use of pop pops due to noise pollution and safety concerns.