A long time ago, a threesome at college did our own Doggie Medley: we started off with a nice, bluesy "Walking The Dog", which segued into "How Much is that Doggie...?" (as I remember, we had harmonised backing vocals to this section: "shooby dooby woof woof woof"). One verse was enough before the piece de resistance: our third member, a mad Scotsman called John, leapt onto the stage with a hairbrush mic yelling "You ain't nuthin' but a hoond dog!". You can get away with three voices and two acoustic guitars (we did) although the mad Scotsman is an advantage. (Nationality isn't such an issue here, it's just that John's Glaswegian accent seemed to suit the ambience.)
This piece was conceived, arranged and performed by someone who has gone on to become a respected Mudcatter, and whose name will therefore be withheld to protect the guilty.