Hallmark made a line of Muppet bookmarks in 1980.
: "Reading is food for thought!"
: "I love happy endings!"
: "A friend is someone who knows all about you... and somehow manages to keep from being insanely jealous."
Miss Piggy and Kermit: "Book lovers share novel ideas!"
Kermit the Frog: "How are things at your end of the swamp?"
Fozzie Bear: "Let's see... where was I?"