Index Cards (with the words Drop and Safe on them)
Each round starts with one drop card and is increased as one safe card is taken away after each questions. You can make the dollar values what ever you want. Each time a wrong answer is given then the player has to draw a card if it is safe then you become the challenger if you draw a card that says drop then you are out of the game.
At the end of the round the leader is the only one safe and everyone else will draw a card with only one card saying drop and the remaining ones safe.
Bonus Round: Same as show except with safe and drop cards the faster your correct the more safe cards you have
Granted not as fun as the original show but a way you could play this at home for fun. Also I would love to see a network revive this show how about on FOX and Mark L. Walberg host this instead of The Moment Of Truth.