I wanted to ease up our routine with unscrewing the ikea curtains end caps.
Here is my solution to cut the time and effort in half.
An additional benefit is that you can change/have them with your colour choice ;)

All you need is an 3mm screw (the same as Prusa use for MK3S+ kit.

MK3S+

I used PETG, but it pretty much doesn't matter.

0.24mm layer

0.6 nozzle

Fast print :)