Here is another fun t-shirt that would make a great addition to your geeky wardrobe, especially if you are an AV geek, the AV T-Shirt.
This fun AV t-shirt features every connection you would need for a high end home entertainment setup, printed on the back of the t-shirt, although it looks like it only has two HDMI ports which night not be enough if you have a lot of equipment.
If you want one, the AV t-shirt is available for $18 from Threadless.
Uber Review via Oh Gizmo