@dteng's Core One Magnetic Top Cover with pockets for 3/8"x1/8" magnets

I had some black epoxy coated 3/8" x 1/8" magnets left over from the LACK table enclosure I made for my Mk2.5 (and am still using with my 4S), so I figured I'd use them. I even found 7 black M3x10 (plus a M3x8 I put in the back left corner). Text infill on "OPEN ->" is just Sharpie paint pen plus regular black Sharpie to touch up from the capillary flow along layer lines. If you wish to use the FreeCAD file to make a different size pocket, it should be pretty easy (so long as it's wider than 5mm): just change the diameter and depth in the VarSet (see screen capture). The 0.2mm clearance I added was maybe a bit large, but I printed mine with a 0.6mm nozzle.