Hi, I have found some very nice RCA jacks between the stuff in my room (girlfriend had me cleaning up :-[ 
;D).
They are branded “Schultz Kabel”, are made from aluminum, have a blue rubber band around them, are gold plated, and have never been used or soldered.
Here’s a B&W pic:
Thomann.de sells these at 2 euro a piece.
Since I don’t use RCA plugs, I’d like to trade them for anything I can use. Just make me an offer, anything goes. If you don’t have anything to trade for, money will do 
.
I’ll throw in a couple of RCA PCB mount connectors, so you’ll have something to toy with (these have been used before).
Cheers, Alex.