Most of the serious suggestions mentioned above might work, but here is a good idea:
One day, stay outside after 9PM and hide in the bush or behind a tree if you have any.
Stay in there, take a nintendo or something and just chill there until the boys come.
Timing is the key here: Don't wait until the boys press the doorbell, they would have started running away already. Approach them when they are walking towards the door.
Be silent.
When they press the doorbell, they will start running away. As they turn back, they will see you. They will fall and drop to their butts. You hold one of the boy's hands. Don't let him go. Make him call his mom. Talk to mom. Mom spanks the kid. Have fun. Laugh at him.
Kinda similar to this, but minus injury or property damage:
Better idea.
Wait OUTSIDE and slash their tires as they go to sneak up to the door.
Sneak up behind them and then ask them "What are we doing."
When they try to flee, watch as they stumble and fall over and their deflated tires.