The Stuart Hall Company produced a line of Muppet notebooks in the late 70s and early 80s.
The Muppet Show presents: Kermit the Frog & Fozzie Bear, 1978
The Muppet Movie, Miss Piggy
The Muppet Movie, Fozzie Bear
The Great Muppet Caper, Kermit
The Great Muppet Caper, Miss Piggy