This episode of READING RAINBOW, "Piggy in the Puddle," features a look at the art of claymation and the joys of mud. Claymation artists Becky and Cody introduce host LeVar Burton to the art of claymation and create a claymation interpretation of Charlotte Pomerantz's PIGGIE IN THE PUDDLE. This program also features kids creating their own clay figures and a trip to a mud racing show. Kids review THIS HOUSE IS MADE OF MUD, THE HIPPOPOTAMUS SONG, and OINK.