I've been making custom holders-of-things for my new Bror Pegboard setup. They all rely on using the existing 2-part mounting pegs. Some of the items here are templates you can use for making your own pegboard containers.

If you want to hack on them in TinkerCAD, that project is shared here: https://www.tinkercad.com/things/lPtMBSwYCp6-ikea-bror-pegboard-addons

• AlcoholBottleHolderCorrected.stl : holds an alcohol squirt bottle
• brorWireSpoolWidened.stl : for the larger size wire spools, with a little hole for pulling the wires through
• pegboardSlideMount.stl : some of containers slide into these mounts to fit onto the pegboard
• MultiMeterWProbeClip.stl - holds a multimeter, with clips on the side for the probes
• multimeterPegboard.stl - holds a multimeter, with a small box on the side for the probes
• ElecTapePegboard.stl - hols a spool of eletrical tape
• WireStripperHolder.stl - holds a pair of wire strippers (but only if they are the right size. It holds the handle when hanging upside down)...
• PlierHolderMoreCurves.stl - holds flush snips, pliers, anything else with similar handles
• brorMetalPlateHolderV2.stl - hold a particular brand of helping hands with metal plate and magnetic clips. But good for anything that's this size
• qTipBror.stl, PenHolderShorterV3.stl, PenHolderV3.stl - just little containers for things like qtips, pens, pliers, etc...
• screwdriverHolder.stl - holds a multi-bit ratcheting screwdriver

Enjoy!