The t-shirt site Graphic Lab [link]
is featuring my "Ghost Biker" design this week. The price is $10 + shipping. The shirt is a Graphic Lab exclusive, and it will only be available through Sunday September 17th.
Just a note on the quality of the shirts.. When I got my "RoboCap" shirts, I was blown away. $10 gets a much higher quality shirt at GraphicLab than some of the other t-shirt sites I have compared them to.