The nunchuck is meant to plug into a Wii controller and the connection is I 2 C, so that’s trivial to interface to an Arduino or other small microcontroller. The only issue is making the connection.

For those of you into pumpkin carving one-upmanship, fire-breathing jack-o-lantern hack using an Arduino and a Glade sprayer should heat things up. Just remember to exercise caution if you try ...