What makes a sundial?  Practically anything.  Sasch Stephens discusses how he became interested in dialing.  Since then he has turned many objects into solar time devices.  It takes some creative thinking to invision how a common object can become a working sundial.  One of the most recent projects turned a 54 x 28 foot south side of a building it into a giant sundial mural in association with Allied Arts and the talents of artist Gretchen Leggitt.  The dial was dedicated on September 22, 2018. View his interview at https://sundials.org/index.php/videos/making-and-using-sundials