Trays Wooden tea trays are made of plywood of different woods. Usually 6 ply at 3mm they are rather brittle, but can used. Why Ply Ply wood is the best wood for boomerangs because the alternate layers of wood have the grain at right angles to each other, so it is strong in all directions - essential for something with a bend in the middle. Plastics Quite a few boomerangs are made of plastic. These can be moulded from polypropylene or more usually are cut and filed from sheets in the same way as wood.
Cloth is more expensive.
This material is very strong and can be got in a range of useful thickness from 1.5 mm to 5 mm. Its higher density will give longer ranges. This material is harder to cut and file, so power tools are almost essential and that usually means creating a fine dust. Foamex and Darvic. This is not very strong, but has a low density, so it is useful for children s rangs and trick catch boomerangs.