Bonsai Kitten
Bonsai Kitten was a satirical website which claimed that you could make a "shaped" cat by putting a kitten in a jar and letting it grow into the shape of the jar. It was named after bonsai, a Japanese art in which trees are shaped. The site was made by a university student with the nickname "Dr. Michael Wong Chang". The site claimed that many different shapes and "containment vessels" are possible, including a cube, a sphere, a wire cage, and even a Klein bottle. Supposedly, the kittens are force-fed through a tube, and the kitten's anus is sealed with super glue.
Bonsai Kitten Media
Cube watermelon. The cube watermelon was later said by the site creator to be influential in the creation of BonsaiKitten.com. Cube watermelons are grown in jars so as to form a square shape.