 His hand-painted custom Vans sneakers were on view at The Whitney Museum of American Art in New York City.Siff's work can be seen at ACE Museum in Los Angeles where he painted a mural for a charity art auction held by renowned auction house, Christie's and non-profit, The Art of Elysium.In October 2013 Siff collaborated with Helmut Lang and Project Angel Food, a Los Angeles-based charity whose mission is to help those affected by HIV/AIDS, Cancer, Diabetes, and other life-threatening diseases.