Randy,
I think you qualify for genius status. :-) I hadn't thought of that.
John

: Oval just the half that is your control hand, then blades are alway correctly
: where you want them.
: You can make a male mold of pink construction foam with the round to oval
: transition. Glass layers over it. You can break up and dig out the foam
: with most anything long and narrow (sharp stick, file, metal rod, auger
: drill taped to rod,etc.)

: Randy