He created "Nothen für die Tothen", an interactive music art installation for Roboexotica. Epstein also created sound collage art under the name "M-sli©k da ninjA" and was involved with The Droplift project, for which CDs with copyright-violating samples were reverse-shoplifted onto store shelves, Dictionaraoke, songs created with vocals by dictionary readings of words, and the Beethoven Reclamation Society, a piece in which many artists each recreated a segment of Beethoven's 9th Symphony using sound collaging. Epstein is married to filmmaker and artist Sophia Cacciola. He resides in Los Angeles.