I recently obtained a "Violet Wand" (not to be confused with a "Violent Wand" which is what Harry Potter fans use when you make fun of them).
It was made over 80 years ago, and still works. It's a nice example of applied physics, and ALSO how some will try to scam you into buying quack medical devices claiming to cure almost every known disease. Perfect for Slightly-Mad Science.
Time for some antique high voltage!
