1. Get nice slides from second hand shops
  2. Get slide projector
  3. Grow fungi on slides and see what happens

Inspiration from https://www.ascus.org.uk/blog/photography-meets-ecology

After foraging for natural samples, participants sacrificed some of their negative film developed in earlier weeks to the micro-world by placing them on the surface of the growth media in addition to the collected samples and thumb prints. Fungi, bacteria and yeasts growing from these samples, started breaking down the emulsion on the film creating a new version of the negatives that when scanned, created some incredible works of art.