How to keep a child busy for hours in the summer: DIY: Giant Ice Cube Awesomeness - filled with plastic animals, dinos, and such. And I'm sure you could put in food dye before its frozen to color it like the ice block in the photo.
It's Beer Battleship! Play the same as regular Battleship, but when you're ship gets hit, you drink. To really get things moving, fill all the ships with shots and all the free spaces with beer (a little mind you) and drink on every turn.