(Video Link)
Marc Kossover attached neon light bulbs to a sheet of acrylic and put it inside a microwave. As the oven operated and microwaves flowed across the panel, the lights lit up.
http://kossover.squarespace.com/journal/2010/11/12/seeing-where-the-microwaves-are.html via CrunchGear
Comments (2)
DUNTUN DUN DUNTUN
For comparison: http://images.google.com/images?hl=en&source=imghp&biw=1680&bih=897&q=absinthe+spoon&gbv=2&aq=f&aqi=g1&aql=&oq=&gs_rfai=