raphnet.] Classic controller to N64 adapter - V2 | eBay
The Raphnet Wii Classic Controller to USB is the real del. It's seriously as good as a Wired Xbox 360 guitar. Legitimately buy one of these if you have a Wii Guitar.
Wii Guitar / Classic Controller to USB Adapter for Clone Hero – DDRPad.com
Dual N64 (Nintendo 64) Controller to USB adapter - V3 raphnet | eBay
Wii Guitar Adapter for Clone Hero and RB4 rock Band 4 V2 - Etsy