These are hooks which you can use to mount a 36x56cm IKEA Skadis pegboard onto a 50cm deep IKEA Ivar system without having to use screws or modify your Ivar system in any way!
Note that these were specifically designed for a 50x179cm IVAR system. When looking at pictures of the other heights it seems like the distance between the crossbeams differs, so I'm not sure if these hooks will work. Chances are they work just as well but with a little bit more slack between the bottom hooks & the crossbeams if you just plug the hooks into different holes of the pegboard.
Printed the hooks both with a .4 and .6mm nozzle, with a layer height of respectively 0.2 and 0.3mm. Both worked great!
The author marked this model as their own original creation.