Shorty's used to sell one that was built inside a 35mm plastic film
container. Plug on one end, jack on the other. WAAAAYYY overpriced, of
course.

"Gary G" wrote in message
...
Having posted to this group before, I though I would just provide
the follow up.

I used a stereo 1/4" male adapter cable into a 3-piece
PVC tube assembly (2 end caps and a 3" piece - stock off
the shelf from Home Depot).
I used a Radio Shack $2.99 audio transformer and using
my old engineering days book, insured that I had the right
impedance transformation ratio.

Gary