Cheese, frozen chicken, truck with window-blades, laptop battery and phonebook armor, mixing some MOO with MEOW, snow plow rocket sleds and the list goes on and on about things with at least potential military use - heck, even white mice in case Hannibal comes around again.
That death ray was less lethal and less effective (and less spectacular) than all of those. I just don't see it.
And the Obama episode? Really, the best they could think of was Archimedes death ray because it wasnt "tested thoroughly enough"??? Come on......