"In 1988, a pair of Muppet cups were produced featuring Kermit the Frog and Miss Piggy. A provided accordion-style straw goes through a hole in the lid. They are not labeled by a manufacturer, just \"Henson Associates\"."@en . . "In 1988, a pair of Muppet cups were produced featuring Kermit the Frog and Miss Piggy. A provided accordion-style straw goes through a hole in the lid. They are not labeled by a manufacturer, just \"Henson Associates\"."@en . "Muppet cups (1988)"@en .