Filament Hanger

I needed a filament hanger to hold a full filament spool and hang off the edge of my desk, so I made this thing. In the current design there is a lip (the photo isn't of the design with the lip) to keep the spool from sliding off as the hanger has a tendency to droop a little under the weight of a full filament spool. I have never had a spool fall off of the hanger, but I added the lip as a precaution.