Here's my idea for the relay you tell me if it's any good. Two teams will go head to head and compete simultaneously. This will be played with jungle juice.
1st Leg
Double Beer Bong (I got one with valves to ensure a fair start).
2nd Leg
First person places a plunger between their legs while a girl places a roll of toilet paper between her legs. Without using their hands, the plunger must go in the toilet paper roll

. After this, girl must chug a cup.
3rd Leg
Both must continue to third person by tossing the toilet paper to each other (cannot move unless not holding the roll). When third person is reached he must do a cup worth of body shots (never the same place twice

).
4th Leg
All three people must dig the fourth person out of the sand. After this he will chug a cup and use an inner tube to swim back across the beach to the starting point.
Finish Line
4 cups will be at the finish line. All must be consumed before the team can cross the finish line.