Because sometimes even fanny packs and pocket protectors aren't enough to announce your nerd-status to the world, we bring you the Solar Mini Clip Fan. The problem with this girlfriend repellent device is that it's actually incredibly practical and useful during these dog days of summer. Simply snap the fan to the brim of your hat and let the solar rays power your personal cooling unit—no batteries required. Mercifully, the Solar Mini Clip Fan will only cost you $10, so if you find that you'd rather sweat than embarrass yourself and your loved ones, you won't be out much cash.

Via Brando