[4] Del Mar is an active singer and guitarist for New York-based punk/ queercore/ no-wave band The Shirtlifters, formed with Craig Flanagin of God Is My Co-Pilot, bassist Dan Whalen, drummer Genny Slag, and vocalist Normandy Sherwood.
[5] Teaching credits include the University of Arts in Bremen, Germany, where Del Mar conducted the first ever "Queer Trash Feminist Film Workshop," in 2010.
In 2012, she presented a series of films and photographs from the Golden Age of Performance Art (1988–2000) with Dona Ann McAdams at Warehouse 9, Copenhagen, Denmark.
Del Mar's work has included music videos that have been accepted to MTV/ Logo Networks: "Bringin Me Down" (2009) and "Brooklyn Girls" (2009) for groups GSX and Hooray for Goodbye respectively.
[10] In 2014–2015, del Mar created an ongoing semi-surreal experimental documentary style web series called delMarvelous: A Day in the Life that American poet Eileen Myles described as "visual poems from a speedy person".