Spencer gifts has litlle tiny 6" Luminglas lamps (the flat plasma lightning panels, like they used in the Borg recharge pods) for $19.95. (the link is to a different company's version).
I bought one blue one. They also come in white, green and a sort of magenta/pink.
I wants more! perfect LoEG decorations, and we may have other fiendish uses for them.