GMS Dog $10
This is one of my all time favorites. GMS once stood for Galactic Mystery Solvers: which was our first company. This shirt was the catalyst that brought forth bike jerks. It also stands for Grumpy Mechanics Society. The Dog head logo was taken from a toy i had as a baby. If you're a grumpy bike mechanic, or you like dogs, or you love acronyms, get one.
