Wow, the suggestion for that Merry Go Round Match got me to think of what may be the most insane, innovative, over-the-top, never-going-to-happen gimmick match in history. It is known only as the Ferris Wheel Match. The rules of the match are simple, it is essentially an 8 man elimination match. However, the structure on which the match takes place is elaborate and fucking awesome.
It essentially is a Ferris Wheel about 20 feet in diameter, but instead of all the carts around the wheel you have 4 minature wrestling rings (approximately 12 feet by 12 feet). 2 wrestlers begin in each ring, and every two minutes the wheel rotates moving the position of the rings.
Obviously, the amount of high spot possibilities in this match is incredible as you would have wrestlers jumping/getting thrown from a higher ring down to a lower ring or you would have wrestlers climbing from ring to ring. Hell, you could even have weapons suspended from parts of the wheel to add some more shit to the mix. The potential for creativity is astronomical.