I thought of this one while on a long run in the hills. Five gentlemen arrive and pick 10 ladies. The 5 men pick one of 5 envelopes that contain the 10 thru ace of hearts. The 10 ladies pick from 10 envelopes that have the 10 thru ace of diamonds and clubs. Then the 10's party together, jacks, queens, kings, and aces. At the start nobody knows who the other two people in their party will be. Now I just need to find 4 guys who want to try this. May have to wait until there are at least 10 ladies in either the Sagebrush or Bunny ranch.