I've always wanted a battle royal to end where it's just two guys in the ring, with one still waiting to come out, then right as the last guy is walking out to the ring, the two in the ring end up tossing each other out, and by the time #30 (or whatever the final number is in the match) makes it to the ring, he's already the winner once he steps through the ropes.
It might be too cheap for say, a Royal Rumble, but it would be cool to see on a TV show. Have the two guys in the ring be these huge favorites, and the last guy coming out a huge underdog that no one ever thought had a chance.