That's a very well designed set @jsonvr, and the speckled filament has yielded an attractive stone effect. Also, I think your design with opposing magnets centered within each square is a very significant improvement over a typical magnetic board.
Ow never played on an other magnetic board before, they don't center it?
That's a shame, it's ecstatically satisfying during play this way
But thanks for the compliment!
I agree, the textured filament is a nice touch. Although its your board, if you offered the design to others I'd use lowercase letters for the files.