Scrying pool, Spy?
As it is your opponent that actually does discarding/putting back, so you need to signal him somehow.
Phil Stone.
Your opponent needs to know the numbers so you don't cheat?
KC-KC-X-X and than, let's say a Bridge, that you only want to play once, and not 3 times (for some silly remake options). If you only put bridge down is it not clear whether it is KCed or not.