Plasma balls are a lot of fun to play around with. There are plenty of tiny ones around. This 15″ Plasma Ball Bluetooth Speaker is one of the largest ones on the market. It reacts to your touch to display mesmerizing lightning effects. The base has a Bluetooth speaker inside.
This plasma speaker measures 15″ * 15″ * 22″. Great for science classrooms, parties, and decoration in general.[HT]