Well I get the boards from Home Depot or Lowes, 3.5" wide usually. Then using a miter saw then a jigsaw roughly cut them to shape. Then Ideally I’d be using a spoon chisel but for now I use various Dremel bits, a belt grinder and in this one’s case a few files to finalize the shape. Finish them out with a foodsafe wax and oil finish and bobs your uncle