live action grinch
Research the symptoms of heat stroke then make a 15-sec video sharing how to spot the symptoms.
Camp overnight in a tent in the wilderness give an MTV Cribs style tour of your entire campsite. (Sorry yard/house camping doesn't count)
Make then eat a dish entirely out of condiments
Tell your best joke in 15 seconds or less.
Fit entire team in a phone booth, a real enclosed booth like the kind superman would use or tardis.
Lay face down motionless in a public area for 60 seconds or until a stranger comes to check on you. Timelapse. (don't forget your totem)