I recently bought a couple sets of dowel centers for use in some woodworking projects with dowel joinery. While they work great, I don't have a nice way to store them until now. In this video I walk through the 3D design/modeling process of my storage solution for these dowel centers, using Fusion 360. The main body of the holder is 3D printed, with a series of magnets to hold them in place when not in use.
Overall I'm happy with the end product, though if I were to make it again I might make it bigger and thus easier to hold, and I would add labels for the sizes as well.
The dowel centers I used: http://amzn.to/2hLTUT6