The "Amazing Chrome Calculator Belt Buckle" is something I imagine the cowboys in Silicon Valley wear as they round up free range robots. It's supposed to help you figure out complex equations on the go. You can flip it upside down for ease of use, or type in "58008" and invert it again to enjoy old schoolyard calculator gags. Maybe the bar pickup lines the Calculator Belt Buckle would inspire will justify the price.
And, for a mostly useless gadget, the price is right: $10.