My neighbor has been playing bass for three hours. How should I exact my revenge?

Have you tried asking them to tone it down a bit or to stop? Sometimes all it takes is knowing that it's bothering someone. On the other hand, If they're doing it purposely to annoy you, go all out. Fill you car with a thousand geese and park it right on the property line. Those things are LOUD!

Blast song Inagoddaveda for 4 hours

If it's the middle of the day then it shouldn't matter. He probably makes a effort not to play bass during noise ordinance hours.

If that bothers you then it must also bother you to hear construction on your block. I rather hear someone play a bass guitar then construction.

Push your bed up against that wall, and try to keep time.

Buy a drumkit

house party

yes. get up at 3am and slam a few doors.

Teach your cat to poop on his car.

Tickle him

Bomb the Bass