Crazy Good Comics sells signed comics and related works by Dan Conner.

This includes
Disney Tim Burton's The Nightmare Before Christmas: Zero's Journey (TokyoPop/Disney Manga)
Teenage Mutant Ninja Turtles Macro-Series Raphael (IDW)
My Gal, the Zombie
and many more

Dan @crazygoodconner ships all items with the help of his wife @circawyn

Disney Tim Burton's The Nightmare Before Christmas is © Disney
Teenage Mutant Ninja Turtles is © Viacom