Where can I find a wavebird GC controller?

I know they are not produced by nintendo anymore. Does any store near you perhaps recently sold or still has one? What stores have electronics and usually do not sell them (like walmart, since I don't think many ppl would buy games from there, but i haven't found a controller there). Where can I find one, basically speaking?

Try a place like Gamestop or any place that sells used games and accessories. I found my GC controller at Gamestop.

try Amazon.com or Gamestop might have some used.