I have a very few really well made ones available. I had a guy I know (custom furniture maker in New Orleans) make me 10 out of maple sandwiching an inner core of softer mahogany. I use the test unit a lot, and beat the you know what out of it (5 years so far with no breakage) I have a couple left, mostly I supply them to customers. Not cheap however. I had been hoping to sell a buch to justify having him take them to a CNC woodworking shop to cut the cost down to something approaching reasonable. These were hand built, and therefore expensive. Seemed like a good idea at the time....