This is a crossbow built from recycled materials. The prod is yew picked up as garden waste, trigger is steel rod from a from a grating. The stirrup is forged from from rebar The stock is a piece of wood (poplar ?) found in the street. The roller nut is a scrap of grey plastic left from something cut with a hole saw. The string is waxed linen found in my aunts basement, and inlay is scraps of black walnut. The bow is 24" and was steamed and bent to shape. It has a 100 lb draw and while it works its range and power are not at all spectacular. When using a simple wooden prod, it would probably be better to make one of greater length.