Easy, but a little long. And it's an oldie because the answer uses 'milk bottle,' and I haven't seen one of them, wax paper caps and all, since there were milkmen and their trucks, and our house had a little outdoor cellar with a foot-pedal flip open lid where they could leave the bottles - three or four feet underground - so they'd stay cool until you could come outside and put the bottles in the ICEBOX. (No, I'm too young to remember the neighborhood iceman - those guys were in my dad's day though.)
Anyways, you need cookies, milk, a pair of binoculars, and tweezers. And a sign.
You lay out a bowl of milk and cookies, make the sign say 'Elefuntz' with an arrow pointing to the cookies. Then back off and hide until the blue elephants come by (this works on elephants of any color.)
They see the sign and start to laugh cuz it's mispelled, then they go for the milk and cookies.
While they are doing that, pick up the binoculars and look through them the WRONG WAY.
Use the tweezers to pick up the tiny elephants and drop them in the milk bottle!
You don't have to kill them though.
OKAY, What's the coolest invention you've ever heard of?
