This is a remix of @Yangorang's Milwaukee M12 tool holder for pegboard and Wall Control, adapted for Omniwall. The mount base has been modified to use Omniwall's OmniClips. This design has a snug fit between the holder and the wall. With a heavy M12 tool inserted, the holder doesn't not have any slop with the wall. The bottom extension and the additional mounting hole at the base makes the whole setup very sturdy.

Support is needed for the bridge between the battery-shaped body and the mounting base, as well as the two “wings” on the mounting base. 15% infill is strong enough for this use case.

This design should also work with Wall Control system and regular pegboards with ¼" holes that are 1" apart, if you also use Omniwall's Omniclips. These 6.4mm (~ ¼ inch) plastic rivet automotive fasteners could also work but I have not tried yet. https://www.amazon.com/uxcell-100pcs-Plastic-Rivets-Fastener/dp/B07D232HSX/

I have only uploaded the forward facing holder. If there is a need for a forward tilt or left/right facing holder, please let me know by leaving a comment here.