Get some 1/4 steel tubing. Sharpen one end. Leave reasonable length for material to accumulate but not too long so it's bendy. Use as a a hole saw in a drill or better drill press. Lube it with some water/liquid soap when cutting.

92 SR, 285/75R16 Yoko MT ARB locker GAST compressor AirLift 1000 MM10500 Snorkel custom rear bumper
02 Montero LS died protecting the master
08 PowerWagon (stock!)