 He has described making the Markham Arms as a "typical day's work" in the model-making department during his early years at Century 21.The scene set inside the Markham Arms features 20 "revamp" (guest) puppets appearing as background characters.Blue's escape from the control room was accomplished by throwing the puppet through a sheet of glass onto the backdrop of the control room set; though filmed at high speed, a gloved hand can be seen launching the puppet.