A student and I painted with bacteria and this is what happened! We used a method similar to that used by artist Sarah Roberts (UK) and microbiologist Simon Park.
Motility agar plates were prepared and painted with watercolor paint before inoculation with P. aeruginosa. After 7 days at room temperature, photos were taken using an iPhone through the microscope eyepiece at 40X total magnification. Credits to Pseudomonas aeruginosa and Lisa Dinh. 12/2013