Hardware High quality GameCube Wavebird third party edition?

[Saiyan Lusitano]

The official ones tend to go for £20-25 and not exactly in very good condition so I'd like to ask if anyone knows of a third party maker that has reproduced wireless GameCube controllers?

I'd want to use it with the Mayflash adapter. I've got 4 official wired GameCube controllers but wireless is a bit more convenient nowadays.

Thanks.