I admit the Animated Pong T-Shirt was awesome, one of the best geek shirts ever made, but this Flashing T-Shirt In Alien Style is also a good one.

Here are the most important details besides the green flashing light:

• works with 2AA batteries that are placed in the battery compartment, which is a hidden pocket located inside the t-shirt. I don’t know how comfortable (or not) this can be.
• instead of the same flashing pattern being displayed all the time there is the chance to switch by pressing the “pattern” button.
• cool fade in/out mode rather than flashing mode only.

Price: $37