I still have one of the t-shirts, but like Don's, it's hardly hi-res. The shirt itself is pretty raggedy, but I've held onto it so far because of the logo.   I could take a pic of it (when I get back home in a few days) and send it to you,complete with sharpening the image.

I may also have a Festival Button with that logo. That image should be more "hi-res."

Genie