This is an emergency substitute for part of a Zefal HPX, a bike tire pump that fits into a frame. These are great pumps. Some small plastic parts called "Zefal HPX Protector" fit into the pump and hold it nicely next to the bike frame. One of these tiny plastic parts broke, and they are difficult to source. I made a quick & simple openscad model to produce a substitute. My printer or skills aren't enough to produce it well, though I was able to dremel a print and it does the job.

Photos, the openscad source, and an stl file are in the zip.