Arrow 

Arrow is the name of the dog in Harry Nilsson's The Point!.

Paul McCartney named his English sheepdog, "Arrow." Arrow is pictured with Paul on the cover of McCartney's Paul Is Live album. Arrow was the off-spring of "Martha," the inspiration for the song "Martha My Dear." It isn't known if Paul's dog was named after the character in The Point! but it seems likely that McCartney was at least aware of the connection.