We've just added a couple of tiers, including the chance to be a saint on the Hidden Almanac and two Tuckerization slots to have a minor character in a T. Kingfisher novel. (Obviously those slots may take a while on fulfillment...) Check it out!
Even if you don't want my tiers, there are some just absurdly talented artists involved and you'd want the book just for their art...
ETA: And apparently people really want me to kill characters named after themselves, because those slots sold in ten minutes. Um. Whoa.
ETA: ...and the saints are sold. Ooookay. That was wild! Thank you, everyone! Now I know what to offer next time somebody wants a charity auction...