Animals

• Sleepers can be transformed into a zoo of animals with tails, ears and other parts made from craft foam or felt. Pin ears to the hood of a sweatshirt or sweater, draw a nose and whiskers with eyebrow pencil and wear matching mittens to complete the costume.
  
  

Insects

• Cuddly sleepers become creepy crawlers with the addition of a hat bedecked with pipe cleaner antennae and bug eyes made from cotton balls. Wings cut from craft foam and pinned to the shoulders complete the look. Make a caterpillar with stripes of black electric tape around the sleeper arms, legs and body.
  
  

Action Heroes

• A sleeper with a big letter "S" pinned to the chest and a towel cape around the shoulders changes a mild-mannered child into a crime-fighting hero. Bulk up a sleeper by wearing extra clothes underneath and become the Incredible Hulk.