How do you handle Disarming Strike?

[Galen]

So, how do you handle the Battlemaster maneuver Disarming Strike in your game?

When the weapon is on the ground, in its owner's square:
- can the disarming fighter pick it up? (if so, does it cost an action? which action?)
- can the disarming fighter kick it away? (if so, does it cost an action? which action? how far away?)
- same questions about the disarming fighter's allies.
- anything else that can be done with the weapon while it's on the ground? (if so, does it cost an action, and which action?)

[MadGrady]

For my games, if an opponent has been disarmed, and the attacker didn't interact with an object yet (open a door, draw a weapon, etc), then I will allow them to pick it up or kick it away.

If they have already used their interaction, or, for whatever reason, choose to just leave it there, I will allow the disarmed opponnent to pick it up, but he is then at disadvantage on his attack roll. I wanted to allow for the effect of the disarm to still be present so that the player doesn't feel like they wasted an action - but at the same time, due to the streamlining of the rules, I don't impose too much trouble on the opponnent.