This is almost entirely the same as Zack's tile for two, but the screws are M3 instead of M2 and the magnet is the same magnet that can be used for the zoidberg tile (This is highly optional, the pegs hold the tile together fine on their own). All dimensions are scaled up 10x. The optimal screws are 3mm OD x 8mm L.

This has now been tested and I can confirm it works.