Photographing my collection of Plasma sculptures has been nearly impossible in the past whilst using 35mm film. However, the digital cameras of today have no problem capturing the writhing lightning and aural displays that splash around within their pyrex containers.
Here's some of my favourites that I either built or purchased during the late 1980s. They utilise laboratory /research grade noble gasses... much more brighter than the novelty plasma balls you might find in the stores.