I’ve just listed this original Rocket Raccoon illustration over on Ebay.
They’re picky about how you list items for charity over there, so it’s not mentioned in the listing, but I’ll be donating the total price of this piece directly to Bill Mantlo’s ongoing care.
It’s an original pen-and-ink illustration with grayscale coloring on white 8.5”x11” cardstock. You can see and bid on the piece here, and let me know if you have any questions – thanks!