 One example of such works include an art gallery titled “ad hoc gallery” which was put on display in collaboration with Geoffrey Brown from 1993-1994.An example of one which incorporates its participants into the art piece itself is "League", which began in 2012 and is categorized as a “participatory project.” Koh describes "League" as “an open group of people who gather regularly to play sports and games invented or conceived by members of the community… The project is founded in a belief in the value of emergent behaviour and the process of making sense of things.” Koh emphasizes games, sport, and play as forms of problem-solving which focus on the mental over the physical and the processes of learning, adapting, and evolution through iteration as central to the overall concept of the project.Koh combines both making use of discarded or found items and active participation in a project called "Sightings" (1992-1998), which involved the commercial printing and publishing of images found in public as postcards.