Ay-O — From the Dictionary 4 (series “Rainbow Passes Slowly”) [silkscreen print, 1971]

Ay-O Setting up Rainbow Environment Number 3 In 1966, the 35-year-old New York-based artist known as Ay-O installed Rainbow Tactile Room (Rainbow Environment No. 3) (1966) in the Japan Pavilion at the 33rd Venice Biennale. The artwork comprised three-meter-tall curving walls painted in bands of color and was adorned with 65 small wooden boxes into which visitors could poke their fingers, feeling different material textures, cool water, or triggering sounds like a bell or the radio. 

Fluxkit (1966-67)

Ay-O - Rainbow Animals. 1972

Yawn by Ay-o, 1978 (Cincinnati Art Museum collection)

Ay-O | Artsy

Depiction of the Ten Commandments, Rainbow Buddha (1970) by Ay-o 靉嘔

Ay-O, Rainbow Environment No.7: Tactile Rainbow Room, 1970