Stemclas Plasma Ball/Light/Lamp, Plasma Electric Nebula Lightening Ball, Touch Sensitive, STEM Toys, for Parties, Decorations, an Amazing Gift for Holiday and Birthday (3 inch, USB Powered) - - Amazon.com
Sound Activated Blue Plasma Ball – 8 Inch - Spencer's
Tesla's Lamp 6" — Heebie Jeebies USA
Plasma Ball Light, 6 Inches | Touch and Sound Activated Lightning Globe | Magical, Interactive, Mood Setting, Fun and Science Lamp | Prop for Parties | 6ft Electric Cord | for Kids and Adults Alike - - Amazon.com
Genius at Play Electric Eel Plasma Ball | Mystic Seaport Museum Gift Shop