Found this nifty USB-C thermal camera dongle (TC001) on Amazon recently. My phone case prevents it from plugging in so I had to get an extender. I didn't like the huge gap that was left between the phone and the dongle which could lead to breakage if it accidentally gets hit. So here's the fix. I made up a design that the phone & dongle slide into which helps support them as a unit.
It's a rather specific design in what it fits, but might as well publish it in case someone else might find it useful.
The author marked this model as their own original creation.