As it says on the tin. Solid 25mm miniature base with a hole for a 5mm x 2mm magnet at the bottom. I print these using those last few metres of filament, and went for a solid design because filament-printed hollow bases would warp in my painting handle.
Thanks to dorkfactory for the original base - I just filled it in and added the magnet hole.
25mmbase_solid_magnethole.stl | 88.0KB |