MOD-Wii-UEXT-NUNCHUCK - Open Source Hardware Board
100pcs Repair Parts For Wii 6 Pin Connector Jack For Wii Nunchuck For Move Plus Plug - Cables - AliExpress
Wii Nunchuck As General Purpose Controller Via Arduino Board : 10 Steps (with Pictures) - Instructables
Amazon.com: 2pcs 1.8M 6ft Extension Cable for Nintendo NES Classic/Mini Edition Controller and Wii Nunchuck and Wii Classic Controller Extension Cords Extender (NES Classic Mini Extend Cable) : Video Games
The WiiMote and FEZ Domino | Robotics / Electronics / Physical Computing