USB Plasma Ball: A USB-powered globe filled with lightning that you can touch.
More Fun (and Danger) With Plasma Globes - YouTube
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Top 10 Demonstrations with the Plasma Globe – Arbor Scientific
Amazon.com: ANQIA Plasma Ball Lamp Touch Sensitive,Party Magical Electrostatic Red Color Crystal Ball for Christmas (Skull) : Tools & Home Improvement
SensoryMoon | Plasma Ball Lamp| SensoryMoon
Plasmas!!! – The Wonders of Physics – UW–Madison
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Plasmas!!! – The Wonders of Physics – UW–Madison
Touching plasma balls. It's not recommended, says EU report
Are plasma balls safe? - Quora
Top 10 Demonstrations with the Plasma Globe – Arbor Scientific
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Flashmen Plasma Ball Lamp 6 inch Science Toy Touch & Sound Sensitive Plasma Globe Extra Large Lightning Ball for Kid Teen Bedroom Decor Lamp Novelty Toy Gift (Purple) - Amazon.com