My focus is Jabba the Hutt, and I've been collecting Jabba stuff more or less exclusively for several years. (See my blog.) I have 99% of the commercially available products for Jabba, so I'm trying to find preproduction items. In particular, I'd be interested in most anything related to the vintage Jabba figure, or molds/prototypes/first shots for newer Jabba figures, or for other Jabba's palace characters (the rancor, gamorrean guards, etc.)
I've also been looking for the vintage Jabba the Hutt and Rebo Band pajamas for quite some time. Please let me know if you have anything I might be interested in.