I thought I was being so very punk and anti-establishment for asking Gwar members to sign a dollar bill for me when I saw them at "Sounds of the Underground" in Atlanta, GA back in 2005. Now I sort of wish I hadn't done it, because I can't ever spend it!
Anyway, Oderus and Beefcake the Mighty (Todd Evans?) both signed it separately. Beefcake is the one who crossed through Washington's eyes, if you're wondering. Also, I asked Oderus if I could have a hug and he happily obliged. "Hugs not drugs!" he said. That is one of my most cherished concert memories.
I regret that I only got to witness them with Dave Brockie once, but I'm also grateful that I had the chance to do so at all.