Onewheel XR charge port plug holder. I received something similar from onestopboardshop when I ordered silicone xlr port plugs. Nice freebie to throw in with the order, but it "clips" on to the charge cable, and mine kept falling off. Took some measurements and threw this together in tinkercad.

• Printed on ender3 v2 with sainsmart 95A clear TPU 0.2mm layer height 228 degC. 10% infill gyroid pattern.
• Uses one small zip tie 2.6mm wide - Link: https://www.homedepot.com/p/Commercial-Electric-4-in-UV-Cable-Tie-Black-100-Pack-GT-100MCB/203531918
• Included some photos of the freebie that frustrated me to the point of inspiration for good measure.