Fashion keeps adapting itself to new technologies, and now even business-types can accomodate for their need for constant tunes.
From MAKE (he-he, tie-pod):
The company’s name is Pink–Thomas Pink, of London. And to be fair they are sold in eight colors. Pink gets €55 for one such “commuter tie” online, but if you are crafty or have a crafty friend it should be a fairly simple sew job.