Nice drift, Jim. Peter Bellamy used to stay over with Valerie & me when he had a gig round about Cambridge or thereabouts, & we would always give him a lift to the venue as he didn't drive. He intro'd us to a similar game, which involved saying a song title [not necessarily folk] suggested by anything we saw as we went along. I remember once, going thru Stamford Hill and seeing a man with beard and earlocks & black hard hat & those odd sort of stockings they wear, suggesting "Here's a Jew, sweet lovely Nancy". And passing a dirty Leyland car brought out "Staines Morris"...