There's always my scratchbuilt laser "cutter" which has seen use ever since late 2017 (
more details here), but that's to be expected.
View attachment 187333
Recently I've found a good pair of adjustable vise-grip pliers and a quality set of files to be indispensable. The former, for being able to hold on to things without having to exert pressure like traditional pliers - these are exceptionally useful in holding bullet connectors and other bits when soldering, holding the nuts on to the back of retract mounting plates while working blind inside the inlet duct, and crimping and crushing stuff with their compound mechanical advantage. The files have proven useful for enlarging and moving the locations of holes in plastic parts such as retract units, removing sharp burrs on small metal parts, and fine-tuning fits between wooden parts.
View attachment 187336