The issues I have always had when printing large peg board organizers is that support is required for the hooks in the back of the organizer.   This makes it less desirable.  So I created a concept for a modular universal peg board organizer.  You can print lots of these universal pegs then design different organizers for your pegboard.  No support is needed.  

As part of the design, I have the universal peg, a 2 peg board mounting base, a 3 peg board mounting base and a socket wrench extender holder (as an idea of how it might be used).  

I was not able to finish the print as I was still printing, but hopefully the idea is clear.  If there is interest, I can give more details and other users can use this as a platform to build their peg board organizers to share with others.