Try out these mods on the rules to have some fun:
The floor is lava - the ball can bounce off the ground once per possession for both teams.
Infinity touch - your team has unlimited touches.
Infinity serve - your server has unlimited faults but once they get it on net the point starts.
Double down - call double down before the start of a point and the winning team receives 2 points instead of 1.
Double cross - trade partners with your opponent. Can only be used if your team is behind by 7 or more points..
Bottoms up - losers of the next point owe the winners a beverage of the winners choice.
There's a me in team - passes do not have to alternate between players, consecutive touches are allowed.
Banana splits - if a player can do the splits mid rally and still win the point the opposing team owes them a banana.
Star Spangled Manners - you must say "thank you" every time your partner sets or passes to you. Loss of point for every unsaid "thank you".