Here is my take on a peg board organizer.  This featues quick twist bolts that hold the pieces on the board.  Please feel free to design other parts to attach to the boards.  This works best on a P or X series sized printer but you can scale it down for your printer and it will work.  Just remember to resize all of the pieces accordingly.  The peg boards print with no supports.  The bolts can be printed without supports if your printer is really dialed in but I like to do support on the build plate only.