Katzco Plasma Ball - 7 Inch - Nebula, Thunder Lightning, Plug-in - for Parties, Decorations, Prop, Home : Amazon.sg: DIY & Tools
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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
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Tesla's Plasma Ball Lamp | Draw out the light from the electrode to your finger!