If you buy inflattable pillow (the special one, C - formed,for sleeping on a plane for example...) ear plugs usually go together with it. I bought a "Slazenger" pillow in the airport recently, and plugs were inside.

Hey, there are three threads related to ear plugs in this awesome sticky thread.

And also, just for future reference, you can find other useful information in that thread as well, for example, church, alcohol, tobacco, tattoo, massage, tailor, stripper, Condoms, second-hand bike, Ayi, mover, Anime DVD, bathhouse, kite, dentist, good local restaurant, big supermarket, Job Hunting wbsite....and everything else.