I did design a matching quick release adapter plate. But I haven't printed and tested it yet. It's quite complex because it contains 2 springs off-center. (One for clamping force and one to keep it open and then jump into position once you insert a quick release plate.) I'm using easy to get M5 bolts+nuts for the axis. A cloth peg spring and a ballpoint pen spring. So sourcing the materials shouldn't be difficult nor expensive.