Sunlu Spool Filament Clip

Like many of you, I use a lot of Sunlu PLA Plus. I like how the spools have the little holes for the filament, but when I put the filament through the holes for storage, the spools don't stack very well. I came up with this neat little piece that pops into the large hole in the spool. It has a slot for the filament so it's unobtrusive and completely flat on the outside. Using only 3g of filament and 15 minutes of print time, you can easily print a bunch of these, but you only really need one per spool because you can move it depending on where the filament ends. Enjoy!