Unfortunately, none have been made. The only Muppet Show dolls ever made made are: Rizzo, Fozzie, Gonzo, Kermit, Animal, Miss Piggy, Rowlf Scooter, Bean Bunny, Camilla, Swedish Chef, Beaker, Bunsen, Statler and Waldorf. Most of these are available through Igel or Walt Disney World (check Ebay).
That could all change this year. Word is, many new Muppet products are planned, but I wouldn't hold my breath for Zoot and Floyd. I totally wish it would happen. Especially Janice.
However, there are spectacular action figures out right now of Floyd and Zoot (coming out in a week or so). They are made by Palisades Toys.