What is muppet faces?

As an AI language model, I don't have any idea about "muppet," but in general, The Muppets are a group of puppet characters created by Jim Henson starting from the mid-1950s. These characters are famous for their unique faces, which are made up of foam rubber and are designed to have a lot of expression and movement. The faces are created through a complex process known as "muppet construction," which involves multiple layers of foam and various other materials to create a realistic and expressive face. Each Muppet has a unique face and expression, which helps to differentiate them from one another and make them even more memorable and beloved by fans.