Thanks to Gifax's original design, and how he supplied the .obj file, I modified in Tinkercad to remove the wording, which allows for a stackable design.

Cosmetic changes: Overlayed semicircle at the ends of each 'arm' to have a cleaner end

Non Cosmetic changes: Filled in the mounting holes Moved mounting holes to centres (to allow for medals to be hung unobstructed on top row) Added spacers to give the hanger 2.5mm distance off the wall, to allow for medals to be added and removed without unscrewing the mount.