I recently purchased a Masterplug Cord Reel with a 50ft power cord, from Sam's Club. It came with a wall mount that I prefer not to use.
I wanted to securely mount it on the slatwall. This design achieves what I intended.
I realized others may prefer to mount it on the slatwall as well.
So, here it is.
License:
Creative Commons — Attribution — Noncommercial — Share Alike