Inspired by Everydecentnameistaken's cable puck from earlier today, I quickly threw together a similar puck that includes an easier to grip ... grip, and uses the one-layer-high slicer trick rectangles to print easily without supports. (https://hackaday.com/2020/05/17/look-ma-no-support-for-my-floating-holes/)
NOTE: I've marked this is a remix but it's been made from scratch and is not a modification of the original, so the public domain license is intentional
2021-02-09: I added mk6 version which makes a tiny amount extra cut in the center spinner and thins the spinner walls a small amount both sides. My tests with the mk5 version didn't quite fit an entire 2m USB cable rolled into it so this change was made.
Use 0.2mm layer height for the rectangle trick to work.
Turn on Detect Bridging Perimeters for a minor quality increase in those areas. Otherwise, I used the PrusaSlicer default 0.2 quality settings as-is.
The author remixed this model.