Sigma Ceramics produced a line of ceramic bathroom accessories in the late 70s and early 80s, featuring Miss Piggy and Kermit the Frog.
Miss Piggy cup
Miss Piggy toothbrush holder
Miss Piggy on a tissue box decorated with Kermit faces
Miss Piggy Soapdish
Miss Piggy handheld mirror, surrounded by Kermit faces. Mirror-side is all white and has relief images of Kermit.