#4 Claymore Kick (Former WWE Champion Drew McIntyre)
Former WWE champ Drew McIntyre used a single-legged dropkick called Claymore to end most of his matches. While it has helped The Scottish Terminator win important matches, it was actually created owing to an accident.
McIntyre wore tight leather pants during his in-ring performance as part of 3MB. He tried to hit a Big Boot, but the pants proved to be an obstacle, and he inadvertently executed a Big Boot / Dropkick hybrid.
McIntyre worked on the accidental invention and gradually turned it into a crucial part of his arsenal.
#3 The People's Elbow (Former WWE Champion The Rock)
The Rock's primary WWE finisher, the Rock Bottom, is a perfect match-ender. It's simple, impactful and photogenic. However, The Rock also occasionally used a comic move named the People's Elbow to massive pop from the audience.
The People's Elbow sees the Hollywood star run around the ring, rope to rope, before coming back to the grounded opponent and hitting them with a overly theatrical elbow drop.
The ridiculous move was indeed created for a laugh. The Rock wanted to make The Undertaker laugh and break character by using the absurd move with a long and contrived set-up. Upon experiencing the jubilant reaction of the audience, The Rock smartly incorporated the People's Elbow into his moveset.