Coal burning a burl to make a wooden bowl Coal burning a burl to make a wooden bowl. The slow way to make a container. Tim Smith Apr 30, 2015 Photos Previous: Bending crooked knives, heated in a small rocket stove Next: Making buck saws Featured In: Life Member – MPGA Life Member – MWGO MWGO Quality Endorsement Academic Partner – UMPI Academic Partner – WSCU