Homemade nuclear reactor

[Marlin]

   Maybe we will get a suprise some day from one of these do-it-yourselfers, I just hope it's a good surprise.

http://news.bbc.co.uk/2/hi/world/us_and_canada/10385853.stm

[twinturbo427]

and this one too:

http://www.dangerouslaboratories.org/radscout.html