MCM electronics has a few tool-less RCA plugs you can use as well. Here's the part numbers:
50-2135: Red marking, silver body
50-2140: black marking, silver body
50-2130: no marking, silver body
They do fit a bit snug on some equipment, so be warned, but they are pretty good plugs, and you can solder them as well if you like. I use these plugs for all my cables.