Purchasing a pool volleyball net may be a great idea. Also, Basketball nets are also very pouplar. For games that don't require an additional purchase, how about Marco Polo or Red Light Green Light? "sharks and mentos" you have 2 sharks and they will call "come swim in my ocean" and all the mentos swimm to the other side of the pool if they get tagged by the sharks they turn into crabs and they help the sharks tagg the mentos Pay for them to play video game there Marko polo, battle ship, um sex no jk idk