Combadge from Start trek Picard, Plus Alt upper rim designs as I cannot make out the design I have made a few different ones based on what I can make out in the reference images.
Uses filament to connect lower and upper parts together, place template on lower part push through filament, snip flush with the cutters like the ones supplied with your 3D Printer.
Magplate uses x3 - 8x1mm magnets.
The author hasn't provided the model origin yet.