 In Japan Ay-O is part of the collection of the National Museum of Modern Art in Tokyo and Kyoto (see 2005 Tokyo exhibition in the links).In 2001 Ay-O had a room in the special exhibit "La fluxus Constellation" in the Museum of Contemporary Art in Genoa.He was also represented in various other Fluxus exhibitions around the world as "Centraal Fluxus Festival" Centraal Museum, Utrecht (2003), "Fluxus & Non Fluxus Fluxus" Randers kunstmuseum (2006).