Prototyping a new work with one of this year's #ToughArt artists! Finished work launches in September pghkids • Robert Zacharias: Robert "Zach" Zacharias is a Pittsburgh-based artist that is interested in building interactive experiences that encourages strangers to engage with each other. His Tough Art piece draws on an installation he made at a busy Pittsburgh bus stop that works like an Etch-a-Sketch, with two control knobs at either end, going in different directions. Strangers figured out how to work together to create art and move the piece in different directions. #museuminstaswap