Whenever Zach's family gets together there is bound to be competition among the brothers. It doesn't really matter what the activity is, it could be basketball or a game of cards. What do they do if the activity of the day is lacking in competition? Make up their own game of course! With whatever is available. Giant marshmallows? Perfect for chucking at each other.

Zach takes the competition seriously :P
Jerry getting ready to throw... err wait, he is just observing, eating a marshmallow.
Running from the pelting marshmallows
And now, hurling the marshmallows as far as possible.
S'mores with aforementioned marshmallows.
Chocolate and a hotdog, yum.
Sarah