New version is available here: https://www.printables.com/model/756596-ikea-skadis-peg-new-version
I combined the hook from https://www.prusaprinters.org/cs/prints/72753-ikea-skadis-display-shelf and the peg from https://www.prusaprinters.org/cs/prints/49089-clothes-pegs
The peg is the 66-17-70 version from the original. (6.6 mm spring diameter, 17 mm wing length, 7.0 mm thickness)
If you print it, share a pic! :D
Supports: Yes, tree works best
Resolution: 0.3 mm worked fine
Filament: PLA worked fine, PETG is recommended though
(Photos include the work of Christa Paolucci)
The author remixed this model.
Merged both models together.