Jean-Louis Naudin's "Plasma, MHD, OAUGDP Researches" page explains how to make a Stable Plasmoid (Ball Lightning) in your kitchen. From the required materials list:
* A microwave oven which is able to produce about 700 Watts of microwave power,
* A small piece of aluminum sheet, 5/10 mm thick and about 10×10 cm,
* A piece of adhesive aluminum or a cyanoacrylate glue tube,
* A small glass of water,
* Some pencil graphite leads ( 2mm diameter, type HB N°2 ),
* A spherical glass vessel ( Pyrex (Tm) is recommended ), about 110 mm diameter.
He forgot the key step: DON'T try this at home. Link to Ball Lightning, and for more fun, Link to Microwave Grape Plasma
