ST-TNG Future Imperfect ComBadge
This is the ComBadge from the Star Trek - The Next Generation Episode Future Imperfect. There are two versions, a single file which is the entire badge which can be painted or filament swapped to change colors. That version will need supports. And a two file version of the top and bottom separately which can be printed in different colors and glued together.
There are holes for 6x1.5mm magnets and a back piece if you want to wear it as an actual badge on clothing.