Jeffrey, thank you for aiming to improve EAGx!
Do I understand correctly, that it's not an EA related art, but general art that would aim to make an experience of attendees better? If so, I think current funders of the conference are good people to reach out to for funding: what did they say?
I'd be excited to fund EA inspired art, since I share Austin's opinion that EA could be better in this regard
As a note, I'd be more willing to fund more concrete expenses, once you have a budget for the exhibition, funding it all "in general", since it's hard to gauge how much money would be needed and what they would buy.