F/S: one pair of Oriton Black bullets, in excellent condition. These are small bullet-like devices that fit on the end of interconnects and claim to reduce the transmission of sound-distorting vibrations through the cables. You can see details here:
http://www.oriton.co.uk/hifi-highend-products/blackbullets/
A couple of quotes from rave reviews in the UK:
The Oriton Black Bullets take all of five seconds to fit and produce a superb return of sound quality. To me, buying a set of Oriton Bullets for your hi-fi chain is a complete no brainer. Hi-Fi World
Naim users lusting after a Hi-Line interconnect but either don’t have or don’t want to spend the £600+ required can instead spend £55 on Black Bullets and get most of the same from their existing cables. Result! Hi-Fi+
These accessories cost 59.95 GBP (approx. US$96), plus international shipping. $55 including postage.