There's this thing called Unified Weapons Master, and it looks really cool. A couple of guys in padded armour wail on each other as hard as they can, and neither will get hurt.

It was made up by a group of Australians so that masters of different fighting styles could go all-out without worrying about hurting the other person.
The suits have sensors that can measure the force that the opponent made, and compares it to what would have happened if they weren't wearing the armour.

I'd love to put on one of these suits and just smack someone around.

Their website: http://uwm.tv/
Their YouTube: https://www.youtube.com/user/UnifiedWeaponsMaster