Art director/designer Garech Stone left 180 Amsterdam to rejoin The Stone Twins Amsterdam, the creative agency he co-founded in 1999 with brother Declan, who did an agency stint at BBH, New York. ... Damon Collins is leaving Mother, London for an executive creative director post at Rainey Kelly Campbell Roalfe at year's end. ... Editor Olivier Gajan, a former Spotwelders and Jigsaw cutter, joined California house Rex Edit. ... Wally Snyder, president & CEO of the American Advertising Federation, announced his retirement. ... Swedish design, animation and production studio FilmTecknarna welcomed Magnus Renfors to its directorial roster. ... National Geographic Digital Motion appointed Ron Gloff as account manager for media entertainment markets. ... Villians signed director Lemon for exclusive US spot representation. ... Jay Milla was named the senior VP/publisher of Moving Pictures Magazine. ... Hollywood entertainment marketing agency Lussier extended its client services by adding full-scale print advertising through a strategic partnership with Zinger! Creative, and has launched its own Live Action Production Group. ... Los Angeles-based branding firm Big Fish named former MTV Networks exec Susan Wladich as its VP of strategic marketing.