Go to the borg, get a small section of 1/8" thick piece of aluminum and
shape it into a fish fin (follows contour of blade). Cut slot in rear of
insert, insert aluminum fin with poly glue.
An 8d finish nail (.125") with the head cut off could be used also. Drill a
3/32 (.09375) pilot hole, use a dab of poly glue and tap it in. I've read
several articles that use a nail but like several others, didn't like the
thought of that nail ever becoming a projectile......