You can always pull what the assholes we've been auditioning lately are trying to do...
Find a band that's auditioning guitarists. Go in with a guitar, but no cord ("oops, i forgot"), and try and snatch their cords. Go ahead, see if they notice. For good measure, why don't you try and take the tuners, too?
(Yeah, that fucker was politely "declined." He sucked anyway. But we got his license plate number and reverse-searched his telephone number to make sure we knew where HIS shit was, too. Just in case anything BIG came up missing later on.)
C'mon, $15! And get something about 20' or longer. I kinda dig the Fender fabric-wound cords (the ones that look like plastic co-ax, in a way).