Patrols search for glow sticks hidden in an open space. Different colours worth different points
Hide different quantities of each colour of glow stick and give each colour a value based on it's rarity.
Red sticks x 20 - 3 points each
Green sticks x 10 - 6 points each
Blue sticks x 5 - 10 points each
Yellow sticks x 2 - 15 points each
Give patrols/teams 15 minutes to find as many sticks as they can. When they return, count up their points based on what they managed to find.
Award prize or add points to patrol points tally