Printed at 0.15mm layer height on Prusa MK4 using Overture 95a TPU. Small dab of superglue on the long side to hold it in. Depending on your printer tolerances you can optionally just leave it in without glue and it would stay anyway.
The author remixed this model.
Shortened the plug and added a length of material on one end for gluing and a small nub to aid in removal.