Modular miniature handle

Please give feedback of any desired improvement or new pieces designed for this; my goal is to make this base a universal tool for every need of miniature painting and make it as accessible in materials and cheap as possible; Thanks for the support, please share it with other people if you think this will help them.

I am working on this miniature handle system, I've managed to reduce the process to glue, cork and Magnets (Diameter 5mm x 2mm thick).

Handle: The Handle can use the arch as well, though it's completely optional if it's not desired(the arch must be pasted with glue if it is required); the handle need between 1-9 magnets (Diameter 5mm x 2mm thick) to work with the bases.

Bases:Every base, either be the cork or the putty one can be fully rotated at 360 degrees without problem to make it easier to paint, they are attached to the base trough magnets 9 magnets (Diameter 5mm x 2mm thick), though this can reduced up to a single magnet (Diameter 5mm x 2mm thick) if needed.

Case