Step One: Give everyone a marble.
Step Two: Start a gigantic game of Gille.
How To Play Abdullah Hamad’s Version of Gille
For a playfield, use a shallow hemispherical bowl (non-parabolic) divided into four equal quadrants. Each player starts in one of the available quadrants. If you can get the opponents’ marble to approach you 1/5 of the way up the side of your own quadrant of the the bowl , while only reaching your arms halfway into the adjacent quadrants, then when you roll your marble out from your quadrant into the bowl and it impacts with another marble you get to keep it. At the end of the competition, the person with all the marbles is crowned King Smartypants.
Use pendulums for more exciting play.