5 -6 tablecloths large enough for four students to stand on it at the same time taking up only 25-30% of the space
Instructions
Each team will get a tablecloth and all the members will be instructed to stand on top of it.
Instruct members that they must flip over the tablecloth without stepping off or touching the floor.
Then instruct them that the first try was for practice. The REAL contest is to do it again, but this time in complete silence and in less than 5 minutes.
First team done, 3 points, second, 2, and third, 1.