Freedom of speech and glowing paper
In 2018, no matter how we try, it's not possible in small and large venues to let people express freely. Thanks to the blind trust of THSF we learned that only beautiful things happened !!
Technically of course, there is nothing new here beside the clever use of visitors phone led for shading, in addition to laser drawing. Everyone was stuck by this Draw It Yourself area. Dead simple things are sometimes best to do.