Stratasys recently released a 3D printed lithophane tutorial as part of their Education Innovation Series, which includes lesson plans and fun projects for K-12 teachers to use to teach their students about 3D printing. For the tutorial, the Stratasys Education Advisory Board (eCAB) team made their own lithophane, incorporating multiple images to create a really neat final product that can easily be adapted by a school for a class photo project. Read more at 3DPrint.com: https://3dprint.com/152158/3d-printe...ane-stratasys/