A very simple Peg Scoreboard printed using AMS but can print without.
0.20mm standard profile used.
You will need 4 x Neodymium Magnets 4x2 mm.
The tolerances are perfect to recess the magnets however you may need a drop of SuperGlue in each hole.
Board:
Layer 1 - 65 white PLA
Layer 66 onwards black PLA
Lid:
Layer 1 - 15 white PLA
Layer 16 onwards black PLA