Fights over games or trading could lead to an outright ban for everyone. But some teachers were never big on the idea of tossing heavy metal slammers around in the classroom.
Tamagotchis were confiscated for being remarkably irritating beeping machines. Anyone who owned one was too busy feeding it to pay attention in class anyway.
6. Temporary Tattoos
Administrators often banned temporary tattoos as part of the dress code, perhaps because they felt they would encourage actual tattooing. Sometimes we were warned about sick individuals who used temporary tattoos to get kids high on lickable PCP.