Corduroy (TV series) Episode 11-12 Flight Of Fancy / 1 + 1 = 2 >Lisa has spent her day at school learning about dinosaurs, and now she's going to build her own dinosaur out of pipe cleaners. Corduroy decides he's going to make a dinosaur too, out of felt. When Lisa meets her pipe cleaner dinosaur in her imagination, the dinosaur is terribly cold. When Corduroy meets his felt dinosaur in his imagination, the dinosaur is terribly wobbly. But by working together, and making one dinosaur out of both pipe cleaners and felt, they construct the perfect Stegosaurus.