Colin Meloy:
Barely visible next to Dust is a lettered and a numbered copy of The Grievous Demise of Mr. Whitley Rackham. There are only 200 copies total, included the lettered edition, and it was letterpress printed. Only the lettered edition is signed.
Then we have a Wildwood ARC, Wildwood US 1st/1st, Wildwood S/L, Under Wildwood ARC, Under Wildwood US 1st/1st and a Wildwood Imperium ARC. I just got that last ARC earlier this week, the book won't be published until February.
Wildwood is currently being developed as a stop motion animated film by the same studio that made Coraline and ParaNorman, so I assume that will help increase its popularity.
Zombies, Elves, Lawyers and Pigs:
The Zombie Survival Guide ARC (Cemetery Dance), World War Z 1st/1st (S/L and lettered editions of both are on order), The Children of Hurin 1st/1st, LOTR 50th Anniversary edition 1st/1st, To Kill a Mockingbird 50th Anniversary edition 1st/1st, Animal Farm Folio Society Edition.
Frank Herbert (Again):
Dune Leather-bound SFBC 50th Anniversary Edition limited edition, Dune Barnes & Noble Leather Edition.
The SFBC edition is actually pretty rare and can be hard to find, especially at a good price.
The B&N edition is also pretty well made for a mass market edition.