This Auction Professor video about rubber duck bath toys got the Rubber Ducky song from Sesame Street stuck in my head. You know, “Rubber ducky, you’re the one who makes bath time so much fun. Oh rubber ducky, I’m awfully fond of you, doo doo dee doo.”  Apparently, there are collectors of these shameless marketing plugs the rubber ducky with the right imprints  or characterizations represent.