Two pictures of Reginald and King Twistomer appear on a window of a bus. * A Sumo of the Opera Khalil returns as Lutfi for the 3rd time. * Minnesota Cuke and the Search of Noah's Umbrella The sippy cup from the sippy cup silly song is on a highchair. * The Lord of the Beans The bean of power is in an art class. * The Ballad of Little Joe When the monster destroys Bumblyburg, the bellybutton song by the B.I.T.S. (Boys in the Sink) plays on a radio.