Remixed this model: https://www.thingiverse.com/thing:2993188
Adjusted it to not need supports to print, added an embossed +/- symbol, and a spot for grip. Also included a bracket to fit in a IP2721 usbc power supply: https://www.amazon.com/gp/product/B0953HKPWG/
The author hasn't provided the model origin yet.