This is what I’d consider my first ‘real’ bend.
It started out as a keyboard I bought up in Duluth years ago and ended up a joystick-driven noisemaker with a neon green paint job. Housed under it’s black and green exterior is a joystick connected to SPDT switches which send voltage to pitch and body contacts.
It also features a 1/4 output for interfacing with professional equipment and a reset switch in case things get really out of hand.
I’m quite pleased with how interactive and how erratic this keyboard can be.