This is one of the first models I created in Fusion (so be kind) almost a year ago, and I had forgotten to ever share it. It's a small base for wooden dowels to vertically store empty filament spools.

The print profiles include 19mm (3/4in), 26mm (1in), and 32mm (1 1/4in) versions, which are the dowels I had laying around. I've also included the Fusion 360 file in case you have other dowel sizes, or you can use the customize feature on Makerworld to adjust the parameters for whatever dowels you have handy. I print these in PLA and they hold up just fine, but they also work great in other materials (PETG, ABS, etc.)

This model is 100% open source and free, so go forth and do with it whatever you desire. If you remix it in any way, I'd love to see what you've done with it!