The University of Western Australia has an annual Uni Open day for the public and prospective students. I have provided a display to generate noise and light outside the Physics department intermittently over the years.  I demonstrated a variety of Tesla coils and here is the latest iteration of solid state twin coils capable of musical modulation of the sparks from a midi input. This can be from a keyboard or computer synthesised. The coils are less powerful but fully enclosed in shielded cages. This is safer and generates much less electromagnetic interference. You can stand between them as demonstrated by Jay Jay Jegathesan from the Physics department. The Physics Department Facebook page has lots of relevant physics stuff in more readable form.

Age and superhero status are no barrier to making music on the twin Tesla coils.

Blake Seglar from the Physics Department plays Tesla coil music with both hands.

Prof. Ian McArthur takes a break from string theory.
Prof. Ian McArthur sparks new advances in string theory.
Prof. Ian McArthur takes a regular recharge to develop new string theories….

A smoke ring machine is useful for levitating children at the Uni Open Day.

I gave this mini Tesla coil to the Physics department. Here demonstrated for the Uni Open Day by Jay Jay.