2) The One Ring (Lord of the Rings Trilogy)
The problem with the One Ring is that while rendering its wearer completely invisible, the price of doing so is steep—by which we mean insidious possession and acting like a jerk. A bust? Not unless you’ve got things that need hiding posthaste. Worried some adolescent punks will vandalize your new car in the night? Just slip the Ring around the antenna and they’ll say, "What car?” Cash to hide? Roll those Benjamins up and slip ‘em through the Ring!