Got one from an eBay seller that custom makes/drills them... arrived broken. Will be moving and vacationing very soon, so I'd like to find one ASAP, so I can keep the monorail packed and use my B&J Press Camera on the road. Let me know what you have. Looking for new, used, handmade, ugly, etc, as long as it's not disintegrting and has the right hole. If anyone has any tips on MacGyver'ing, let me know, too. Tried the old foamcore trick, but it lasted about 3-4 days before falling out. Unfortunately, my power tools are already in storage. Would be interested in one with a 42mm hole, too, but that one isn't as dire! Thanks!