S6·E9 George and the Giant Thumb

It has just rained in the country and Bill is having some trouble throwing newspapers due to a sprained thumb. When Allie and George see an article in the paper about a giant statue of a dog, they decide to make one as a tribute to Bill's thumb. They cannot seem to find the right building materials. George does not have enough clay, shaving cream is too runny, and peanut butter is too sticky. Eventually, with the recent rain, they try to make a statue out of mud. But they can't seem to get the mud to hold its shape.