In alt.home.repair, on Sat, 20 Jul 2019 20:56:16 -0400, micky
wrote:


I think all these power tool ideas are bad ideas. Dangerous. It's not
wood, You can make a jig to hold the tennis ball, just 4 two-inch
books would probalby be enough, or you can nail some 2x4's together and
then use a sharp knife witha sharp point. Non-folding or with a latch
that keeps the knife fromfolding.

Better yet, drill a small hole to put the pointed tip of the knife in.

Yes, that's a power tool and I said they were bad ideas, but not this
one.