These were done by Tim for an auction organized by Furi Furi & Devilrobots to benefit Save The Children/Japan. Twenty four artists got blank "Deko Boko Boys" to customize... http://www.toysaveschildren.org/toysaveschildren.html Nice pieces + good cause = I'm happy.
Actually, that's a 'Totem Pal' body, I believe, not stack pack. Looks like each artist used different legs/bodies/etc. I like the Doma set - rarely see anything from him (him?).