It occurs to me that a necklace like that could make an awesome Christmas present for someone who plays D&D.

A silver necklace with a bunch of empty chains and a single ruby bead. In a box with a card that says "You have one fireball left. If you need to use it, call the phone number below and I will arrive as quickly as possible with a Molotov cocktail in my hand." 😁

!BBH