Rosalie B. wrote:

We don't moor the boat with it - we just grab the mooring ball and
attach a pennant if there isn't one. The snap shackle (on the end of
a pole), just helps with the grabbing part, and I think it can be
rigged so that once you've got it, the pennant - already attached to
the bridle - is automatically attached.

As I understand the term "snap shackle," there is no part readily available
that will do what you suggest, Rosalie. A "snap shackle" is (to me) the
part that is spliced (or tied) into a halyard or sheet and used to secure a
line to a sail, a tackle to a vang rig, etc. I am thinking in particular of
the 1100 and 1200 series that used to be supplied by Nicro.

--
Good luck and good sailing.
s/v Kerry Deare of Barnegat
http://home.comcast.net/~kerrydeare