Dave Bryant - you're already in there in this photo. A fine figure of a folkie in its natural environment.

And GUEST who's worried about lawyers, as suggested already, it really would be better to try on a stable pseudonym (eg GUEST, Bashful") to avoid getting confused with some of the other bods who post as GUEST (click on the GUEST at the head of your post and see why you woldnn't be want to be confused with some of them).

And you could post a photo with a false beard or a Lone Ranger mask - or a picture of a pet or an instrument. Just something to individualize yourself.