This is how I'm storing screw drivers on a pegboard now instead of those awkward metal double ring things.

• easy insertion, no aiming for two rings
• expandable to number of tools on hand
• screwdrivers must stay straight and neat
• small screwdrivers shouldn't fall through
  For more information, see my blog postings
• http://www.twobraids.com/2014/03/pegboard-tool-storage-part-1.html
• http://www.twobraids.com/2014/03/pegboard-tool-storage-screwdrivers.html

Remember to print it with a fairly high density so they'll be more robust.