This belt buckle features a hand-built MP3 player using a kit from Sparkfun Electronics. You can change tracks by tilting your buckle thanks to an accelerometer and songs are stored via an SD card. You can’t buy the buckle as a kit, but you can buy the music player itself and create your own music-playing apparel. Perhaps if you put one in a football helmet, Eli Manning would have won last night’s football game. Ugh.