This is a simple adaption of Tridense wall mounted headphone hanger to be used with an IKEA Skadis board. The hooks need support. The headset depicted in the image is the Logitech G Pro X, a moderately-sized gaming headset.
I experienced pretty good friction between the hanger and the board but if the holder tends to slide out of the pegboard holes when you retrieve your headphone, consider printing the IKEA Skadis Lock Plug in 12mm I attached. Depending on your print settings, filament and board, you might have to choose another size.
I am constantly developing more IKEA Skadis attachments. Check out my IKEA Skadis Collection here.