Maybe we need a T shirt that says "Southern California 'Cy'-ber space hiker" with a photo of Cy on it?
Seriously, we could create a logo of some sort that says "Southern California Mountain Forums" (a nice and generic name so it could include all the various forums). The logo could be put on a hat, shirt, or what have you. It wouldn't be hard to set up. I've Cafe Press before with a church group that I'm part of called BRICK. See
http://www.CafePress.Com/BRICKclass only mentally substitute a "Southern California Mountain Forums" logo for the BRICK logo shown.
You'll notice that (IIRC) none of the products on Cafe Press are wicking material. However, the Sierra Club WTC course
does have several options in the wicking department, see
http://www.nhallmark.com/WTC/shirts.html. I'm sure we could set something up if we came up with a good logo.