Information for Claytime at Polka Theatre for Children, Outer London (Kids show). A play with clay! The characters, settings and stories in Claytime are all dreamt up by the audience in this imaginative, interactive show, and created out of a huge mound of clay. As the audience comes up with ideas, the performers bring them to life - a world of fabulous forms, from amazing animals to morphing monsters. No two performances will ever be the same!