I have just found this on DealExtreme, not sure if it has been posted before but, considering gamecube controllers are pretty hard to get now, this looks like a decent clone of it. Better than a Gameware one at least.
- Fully compatible with Wii and GameCube
- Built-in Turbo and Slow buttons
(the following descriptions are as printed on the product packaging)
- Analog controller with vibration feedback
- Eight completely analog action butons
- Analog sticks with rubber coating