I don't mind vuvuzelas.
For those of you who hate them, Lifehacker lists several ways to silence them. If you have a good home theater system, here's the best way:
We spent the morning here at the Lifehacker labs trying out the settings ourselves, and found that if you duck your EQ at 465Hz and 235Hz, you can in fact filter out the buzz with great results. Ideally you'll reduce each frequency by at least 40dB (which got rid of the drone completely for us), but if your equipment can't quite duck that low, just go as low as you can.
Noise-cancelling headphones also work.