Ernie's Rubber Duckie is a Sesame Street toy made in 1977 by Knickerbocker. The toy is a replica of Ernie's pal Rubber Duckie, celebrated in his famous song "Rubber Duckie".
Hasbro made a version of the toy in 1985, under the Playskool line. Playskool's Rubber Duckie was still being sold as of 1992. This version does not attempt to mimic the broadcast design.