The Origami Source Buy books and paper from a selection of fine products from Convention's primary vendor, The Origami Source. Vendors Vendors of origami-related merchandise can sell their wares; register here to sell. Silent Auction Bid on special one-of-a-kind items at our Silent Auction. Remote Bidding Place a remote bid on special one-of-a-kind items at our Silent Auction. T-Shirts and Diagram Book Purchase our Convention 2022 book (print or PDF) and T-shirt on your registration form or at The Origami Source.