I would make each rhombus by taking a long piece of stock (maybe 4' long) and ripping the bevel cuts on the table saw. This would give you the rhomboidal cross section along the length of the piece. I would then take multiple pieces of different wood species and glue them together which creates a hexagon that is 4' long. You can then take these hexagons and cross cut them to whatever thickness you need for your table. Now you are gluing together hexagons rather than rhombuses.
