biwired RCA speaker cables?

What RCA speaker cables with biwire one end/single RCA jack the other are available? Can one just snip off the ends of a standard RCA cable and connect them to a biwire speaker cable?
Why? The advantages of biwiring are minor but, surely, only appreciated in the context of an excellent setup. Use of RCA connectors for speakers would disqualify.

Not sure what you are trying to do. I am confused. Why do you want to use an interconnect as speaker cable? Where did you get that idea from?
Shotgun or double run in same jacket? It simply prvides you with more flexibility to bi or triamp. Watch that the speaker doesn't complete a circuit from one amp to the other. As might occur by leaving the buss bar on,when using to different amps,if only one amp and your cool.