ThinkGeek's really letting the jams out this time. The company is no stranger to shirts emblazoned with playable instruments -- but a messenger bag? Its new Electric Rock Guitar Bag features 14 buttons for a fretboard so you can strum any songs in a Major key, and a detachable amp that cranks all the way up to an obligatory 11. You'll also have room for a 17-inch laptop, while its eight pockets can hold your Green Day and Blink-182 chord-cha
