Cubical spool hook #FilamentChallenge

Design this spool holder to hook into a cubicle, or retail end cap. A radio shake was going out of business near me and selling off everything. I picked up one of their end caps that happen to have slots on the side for peg hooks or shelves. I wanted to design a system to hold my filament while not taking up a large amount of space on the shelf.
I started with a fitting for a piece of 3/4" PVC and worked on a bracket system to hook into the peg hook slots. I ended up needing to redesign the top took to be a bit longer to support the weight of a full spool with out falling. After a few re-designs I came up with this current system and have never looked back!