The Wizard will always be my favourite video game movie of all time -- not just because of the power glove. But mostly because of the power glove. The above gadget, is sort of like a power glove. It's like a power glove for folks that like Dungeons and Dragons.
Actually it's more like a gauntlet -- a gauntlet that also functions as a virtual dice. You can also set the device to work as a dice with as many sides as you like up to 100. So if you want to use it as a dice for any kind of Dungeons and Dragons style game, then you totally could (and should).
You can pick it up for $70US from ThinkGeek.