Keep unstable turnings under wraps
Burls, spalted maple, and other unstable materials can fly apart when spinning on the lathe, especially during the hollowing. To avoid calamities, I wrap my turnings securely in stretch-wrap film purchased from a local office-supply store, securing the end with a piece of tape. This applies enough pressure to maintain the integrity of the piece as I hollow it. Wrap the film against the direction of spin so it won't unwind during turning.
—Tony Kahn, Westfield, N.C.