Sounds great. I'm glad you're interested. Here's the address of the shop:
http://www.cafeshops.com/GreenHybrid
Currently I only have this shirt because I didn't know if there was interest. There are additional products that can be created at
http://www.cafepress.com/cp/info/products/index.aspx
What else are you interested in? Perhaps I can design some more. Do you have contact information for those in the group?