NOT-MUPPETS

The definitive list of things that are not Muppets
  1. Big bird
  2. Bert & Ernie
  3. Jabba the Hutt's pet thing in Episode VI
  4. Lambchop
  5. Cousin Skeeter
  6. Tube socks.
    Suggested by   @bekezandy
  7. Mission trip puppets
  8. Paper bag