Electronic Drum Kit Shirt - Geek Gift Guide 2008 by ExtremeTech
http://www.extremetech.com/article2/0,2845,2334678,00.asp?kc=ETRSS02129TX1K0000532
"This 100% cotton, black shirt includes a drum kit decal with seven, yes seven, different drum graphics and sounds. All you do is tap on these drum graphics and you're well on your way to your first T-shirt drum solo. The included speaker requires four AAA batteries and sits in a pouch on the inside. The speaker's volume can be adjusted on the fly, a good thing because those neighbors of yours are seconds away from calling the cops. "