https://www.amazon.com/Nintendo-Super-Smash-Classic-Gamecube-Controller/dp/B00O9GW8TC/ref=sr_1_4?crid=7U3QA3GIIPKH&keywords=white+gamecube+controller&qid=1569440986&s=gateway&sprefix=white+gamecube+%2Caps%2C168&sr=8-4

Expensive as fuck now, even moreso than it was two years ago where I got it for like 100 flat.