Describir: Mechanical special effects for "The muppet movie" /

   _____   _    _    _    _     _____     _____      ___      ______  
  / ___// | || | || | \  / ||  |  ___||  /  ___||   / _ \\   /_____// 
  \___ \\ | || | || |  \/  ||  | ||__   | // __    | / \ ||  `____ `  
  /    // | \\_/ || | .  . ||  | ||__   | \\_\ ||  | \_/ ||  /___//   
 /____//   \____//  |_|\/|_||  |_____||  \____//    \___//   `__ `    
`-----`     `---`   `-`  `-`   `-----`    `---`     `---`    /_//     
                                                             `-`      
   ___    
  / _ \\  
 | / \ || 
 | \_/ || 
  \___//  
  `---`