I've developed a 3D-printed speedloader for Taurus .22's - it was a project for my Club Chairman (I owed him a few favours). Is it worth marketing it? There's also a 28-round loading tray to go with it.
Update: I’ve now sold quite a few of these via , and have refined the design. There’s now also a magnetic insert for .38spl speedloader pouches which allows you to have these on your belt like any other speedloader. If you’re interested, either look on a popular auction site (search for Taurus .22) or contact me directly.