As well as official postage stamps, the collectors market also includes issues for which postal services have no obligation to deliver, such as postmarked stamps and gold replicas of postage stamps which cannot be postmarked anymore.

These collectables caught the eye of Oman Post, too, and they asked Stapps to make a series of gold stamps (i.e. without the denomination of its value) to mark the occasion of the 40th anniversary of the Gulf Cooperation Council. They did want them quickly, however, because the celebration was only two months away. Nonetheless, Stapps delivered: six gold stamps in fabulous packaging and... on time.