Coin between Knees

steps:
1) Place an empty wide-mouth jar in the middle of the room
2) Members start about ten feet from the jar with a coin placed between her/his knees and have to walk to the jar and drop the coin into it
3) Each guest is given just one chance for each round. Has to start again if coins fall

rules:
The guest who gets maximum coin into the jar in one minute wins.

requirement:
1) A Jar
2) Many coins