My husband just emailed a link to an article on Collector's Weekly called Before Sesame Street and Electric Mayhem, a Crude Kermit Lip Synced Pop Standards.
These posters were included in the piece, and I fell in love instantly.
The article's author, Ben Marks, explains the posters in this bit:
On “The Muppets Show,” the vehicle for Henson’s musical side was its house band, which, like Kermit, has its own legions of fans. For example, in anticipation of the new Muppets movie, a Toronto graphic designer named Michael De Pippo created gig posters for each of the original members of Electric Mayhem—Dr. Teeth (keyboards), Zoot (sax), Janice (guitar), Sgt. Floyd Pepper (bass), and Animal (drums). Originally conceived as a fan’s “homage for my love of the Muppets,” the posters went viral on the Internet earlier this fall and were quickly licensed by Disney, which is publishing limited-edition, signed screenprints of each poster via Acme Archives. De Pippo says that some of the 18-by-24-inch posters, which advertise a show by the band at The Muppet Theatre on March 19th, 1975, the air date of “The Muppet Show” pilot, should be ready in time for the release of “The Muppets” over Thanksgiving weekend.