Welcome to Clay, the first app to take your doodles to the third dimension! This simple and friendly tool lets you make augmented reality sculptures in a fun and natural way. With Clay you can sculpt, have fun, and share your masterpieces. How does it work, you ask? It's as easy as 1-2-3! 1: Print the marker from www. Claytheapp. Com. 2: Point your device at it.