I've got a Stone Soup-style project going on over at the Cardboard Warrior forums some of you don't know about yet:
OldSchoolDM's Popup Terrain: Designer Staircase Sampler
I'm gathering diverse textures for several of my popup staircase designs to publish in a single kit. There's a lot of details about how it all works at the thread, so please read that if you are interested in participating. We already have six designers on board! Experience level not an issue, and we're looking for a broad range of styles - fantasy, modern, cartoon, abstract, sci-fi, you name it!
I'm especially trying to reach people like @Vermin_King and other papercraft terrain designers who hang here more than on Cardboard Warriors, so please pass the word to anyone you think might be interested.
Thanks, OldSchoolDM