Cymatic water amplifier

I’m making a portable water amplifier to be used as part of a sensory activity for young people with disabilities. Basically it’s just a rehoused 60W amp, mounted horizontally. I’ve not got round to making the acrylic tray that sits nicely in the housing but couldn’t resist trialling it with a plastic box I found.

Put my lovely drone machine through it and the results are pretty satisfying.