Another vote for Blue Jeans LC-1. They are incredible for the money. Sad to say, many cables are so overpriced that you think something must be wrong when a new set of 3'/1M RCAs are less than $35 shipped.
These cables are excellent and unless you have an incredible source, an incredible preamp, $5,000 speakers or a high-end headphone setup, you can't improve on them for anything less than Valhalla-level cables. Maybe if you sit there and squint while you try to hear the subtle differences. Otherwise, nope. And who listens like that anyway?