Quoted from schudel5:3 strikes tournaments are fun. 2 player games and loser gets a strike. Get 3 strikes and you're out. You can use the Matchplay online software.
Split flipper (zen) tournament is a blast. That's where one person has one flipper button and another person has the other. You can just do single elimination bracket.
Dollar games. 4 people throw $1.00 on the game and the winner gets all the money. You keep playing until your friends are broke or pissed off at you.
3 strikes is fun. We did this at a get together prior to Expo. Had a blast!!