Diodes to protect a multiple PCB setup?

Hey all, can anyone point me towards the exact type of diode I’d want to use to protect my consoles and PCB’s in a multi-PCB stick setup? The stick will be around lots of friends that might pull a stupid and plug in multiple PCBs at the same time. It would be ideal if someone could link me to the exact diode from Radio Shack, as there’s 12 of them near my house.