Using Flyers/Zeps to Kill Boats
Here you can see 3 enemy destroyers coming to attack my zeppelin. I just sit my zeppelin over top of the enemies juggernaught, and they eventually sink their own ship (as seen in the 2nd picture), just before they kill my zeppelin. It might seem kind of cool, but it's really impracticle to use. If you ever find the time to do this during the game, you should really try to find some better competition. If you are lucky, one day you might get to kill an enemy peon by using this trick. You just need an enemy destroyer that hasn't been away from the shipyard, and a peon that is close to the shipyard on the shore. Good luck.
Thanks goes to MajinGandalf for reminding me of this.