Dan's entry is totally valid. Not my favorite, but definitely an alternate use.
The runner-up is much funnier than Nate's, in my opinion. Nate's is good, but the Dracula part is the only funny part, and that's a bit. . . obvious. As for Zhen, the castinent is funny, using it as a lighthouse and military morse code. It's so complex and dumb, I love it.
Anyway, I'll post mine now:
"One if by land, two if by sea.
Famous words from America's Revolutionary War, the number of lanterns to warn how the British were approaching.
But that can't be fun, just holding a lantern all night. So propose sending a DS Lite back in time, to help out our patriot forebears. They'll be entertained, and with the DS Lite's incredibly bright screens, no doubt the sign would be seen across the land.
If they're coming by land? They play a Gameboy Advance game. If by sea, a match of Mario Kart.
E Pluribus Unum. Game on."
First idea that occurred to me. No idea why