Just fitted a new brake cable for the first time in well over a decade (my main bike has hydraulic rim brakes, and only my station hack still uses bowdens; it doesn't get much use, so the brakes and ancillary components last forever). Since you can't get 'front' brake cables any more, I've been left with over a 1.5m of pristine bowden cable. It seems a shame to throw it away, but a careful search of these forums reveals only one suggestion:
Considering the success of the Recycling Inner Tubes viewtopic.php?t=151485 thread a couple of years ago, I am relying on all of you to collectively come up with 1001 uses for old brake (and gear) cables. So hit me with your ideas before the cut offs land in the bin.