If a kangaroo swapped tummies with a grizzly bear, the kangaroo's front would be covered with hair, and the grizzly bear would have room to spare, 'Cause he's got no use for a pouch down there.
If a tortise swapped backs with a porcupine, they'd probably swap back eight times out of nine, 'Cause other than shell shock, the porcupine's fine, but the quills would send chills down the tortise's spine.
If a lion swapped hair with a cockatoo, Nobody'd say, "Hey, I like your new do." Well they might to the lion (Well, hey wouldn't you?), but nobody'd lie to the cockatoo too.
If a mouse swapped ears with an elephant, that would be quite an astounding stunt, 'Cause when hunters would go on an elephant hunt, they'd think they'd discovered an elephant runt.
If I swapped noses with my dog, Spot, I'd get whacked on the nose with the news quite a lot, 'Cause I'd sniff around places I probably should not. Guess we're all better off with the parts that we've got!