Locked On Proximity Sensing Shirt from ThinkGeek! Geeky T-Shirt Love.

The guys from ThinkGeek just created the geekiest thing ever put on a shirt — a locked on proximity sensing t-shirt! This is how it works, each individual shirt is equipped with a sensing device that will lock on to anyone with the same shirt within 5 meters of you. Perfect for some hide & seek, and awesome as a gift to just about anyone!

To get some of these shirts from ThinkGeek: Click Here!