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
Dr. Teeth and the Electric Mayhem, 1978
The Muppet Movie, Miss Piggy
The Muppet Movie, Fozzie Bear
The Great Muppet Caper, Kermit
The Great Muppet Caper, Miss Piggy