Lily produced a line of Sesame Street party supplies in the early 1970s, including napkins, paper plates, and a set of paper cups called Muppet Cuppets. The line features drawings by Sesame book illustrator Michael J. Smollin.

Featured characters include Ernie, Bert, Big Bird, Little Bird, Cookie Monster, Roosevelt Franklin, Herry Monster, Oscar the Grouch, Betty Lou, The Amazing Mumford, Count von Count and Mr. Snuffleupagus.