NIB GameCube controllers. Where to source?

[danny_galaga]

I asked elsewhere but didn't frame the question very well. What I am.looking for are brand new GC controllers, to use on a GameCube.

The reason I confused my question elsewhere is I mentioned I thought they re-released GC controllers to use on a later Nintendo product. I thought Switch but maybe it was for Wii U. But still with a GC plug.

Anyway, whatever it's reason for existing, does anyone know what specifically I should be looking for? 

All I'm doing is future proofing my ability to play GC games properly. I have one good condition controller, one faulty one and several aftermarket ones, which quite frankly suck ass. Though not as bad as the aftermarket N64 controllers 😄

Edited May 27 by danny_galaga