Source: Katipeck's Photostream
Kati Peck created there matryoshka ("nesting") dolls to resemble the characters from “The Nightmare Before Christmas.”
The first (largest) doll is the entrance to Halloween Town. The entire doll is textured to resembles the bark of a tree. On the back of the pumpkin door is the entrance to Christmas Town, which has a Christmas tree painted on it. You can see it in the other photos in Kati's gallery. The next doll is a very rotund Jack Skellington. The third doll is Oogie Boogie, the horrible sack-like creature stuffed with bugs. The Mayor of Halloween Town is the fourth doll, and finally, there's a very diminutive Santa Claus.