The Church of the Scarecrow is made of straw. To be exact a steel superstructure thatched with fire retardant treated straw. The Windows are all stained glass representations of various Tarot versions of The Fool or Key Zero. At the front below the traditional Crucifixion is an accurate version of Baum's Scarecrow on a pole. The creator of the Church "Balmy" Lemmy Long argues that the scarecrow is a modern incarnation of the Holy Fool, what he lacks was not reasoning but experience. He lived life the perfect innocent. There is a lesson there, so he says.
This was something you needed to know.