what is the scarlet pimpernel, most elusive and immaterial, in a word unique of all walkmans? i have a candidate, but it would be nice to know yours before i share mine.

tip: only items that have been marketed should be taken into account

disclaimer: this may be a tongue-in-cheek post

to be sure, i never thought it was the following:

http://www.ebay.it/itm/THE-RAR...;hash=item337a57440c