I know some with disabilities, who rely on their wheelchairs and the way they are tied to them, who are frustrated by the machines that enable them.
Turn these into an asset.
Feature the machine as an actual part of the art, performance art and/or dance.
Using machines as part of art is new enough and fresh enough, that I personally feel it would give these artists an edge.
Here's an example of drones being used in dance. In this particular example, the artists are not disabled, but as soon as I saw this I thought how well the performance would and could blend in with artists in wheelchairs, and actually feature the wheelchair as part of the art.
Elevenplay - Dance Act with Drones and Lights | Auditions Week 2 | America's Got Talent 2016 Full