Kerry I made mine out of PVC. Here are pictures of them from the front and back side. I used 1 X 8 nut with a hole drilled slightly smaller than the nut. Then used a wood chisel to make it fit. I coated the wood with epoxy to seal it in case it had any voids or leaked. Once the nuts were epoxied in place I put them on the lathe to true them up and cut the slot for the PVC. Epoxied them in and like I said coated the wood also with epoxy to seal. Used foam from CSUSA glued to the lips.
Cost was about $3 each.
Retirement: That’s when you return from work one day
and say, “Hi, Honey, I’m home – forever.”
To succeed in life, you need three things: a wishbone, a backbone and a funnybone.