Sigma Ceramics produced a set of Muppet trinket boxes in the late 70s and early 80s.
Miss Piggy on heart-shaped bed
Miss Piggy on yellow pillow
holding a banjo and sitting on a lilypad, 7.5 in. tall
Kermit playing a banjo, and sitting on a lilypad, with cutouts, 1979
Kermit on mattresses, 1979