g very similar to what Jim mentioned but literally
a collapsible fishing pole with wire tie-wrapped to it and another
dangling from the balcony rail. Matching was provided via MFJ tuner. I
found an antenna mount in the CB section of a truck stop that
consisted of a CB mount welded to a pair of locking pliers.
There's also things like a locking pliers (Vise-Grip) welded to a
C-clamp or pipe clamp (which looks like a C-clamp, except the fixed part
is a V shaped piece. There's also a clamp that is like a vise-grip,
except instead of jaws, it has a piece of bicycle chain and a hook. You
wrap the chain around whatever it is you want to clamp to, squeeze the
handle and it locks it in place.
http://www.irwin.com/irwin/consumer/...rwinProd100322
http://www.irwin.com/irwin/consumer/...IrwinCat100299
Take a look at a catalog for stage and theatrical rigging, grip or
gaffer's supplies. There's a wealth of nifty things to attach stuff to
poles/standards/posts, etc. They're always having to temporarily attach
stuff on a set or stage. Things like grip clamps with a baby pin are
useful.. For fun, take a look at the Matthews Meat Axe (pricey, but you
can hang remarkable stuff from it)
http://www.filmtools.com/gripclipandc.html
http://www.stage-n-studio.com/Cat_04...ght-Grid-1.pdf
If you want to get elaborate, look at stuff used to attach cameras to
cars and other stuff.