Mr. Fusion

Mr. Fusion is (or at least, will be) one of the darned most useful things. PERIOD!

You can save a fortune on gas (and plutonium) bills by filling this baby with garbage. However, you should be careful with that thing, because it was known to have caused a freakish incident (and contributed to another) between Leela and Scooby Doo, and possibly [Light Tight (Learning French Lesson 2)|a Deer and a Fish]].