Bonsai Knob Cutters
Bonsai knob cutters are one of my favorite tools. They are designed for cutting off bumps or small knobs from trunks of your plant. They are also used to cut away branches while making only a small scar. They way the blades are made, it leaves a small hollow, circular-cut that will heal very quickly without leaving a scar. Add a little cut paste to protect the opening until it heals.