http://www.ebay.com/itm/AUTHENTIC-STAR-WARS-35mm-REBEL-BLOCKADE-RUNNER-PRODUCTION-SLIDE-RALPH-McQUARRIE-/310656926251?pt=LH_DefaultDomain_0&hash=item485498822b

http://www.ebay.com/itm/AUTHENTIC-STAR-WARS-35mm-SETUP-OF-CANTINA-SCENE-PRODUCTION-SLIDE-RALPH-McQUARRIE-/380628196808?pt=LH_DefaultDomain_0&hash=item589f355dc8

Some 35mm slides with behind the scenes shots I don't think I've seen before elsewhere. (Check the seller's other listings for more.) Pity they want a hundred bucks a slide!