Sprang loom made from canvas stretchers, two pieces of dowel, and some cord. <> re Phiala's larger sprang loom: "The upper and lower crossbars are made from 2x4 lumber. The outer edges were rounded and smoothed so the warp would slide over them. There are two bolts, not shown, that tighten the upper crossbar to the sidepieces to hold it in place." <> See website for much more.