Donner Sustain Pedal for Keyboard, Piano Sustain Pedal Universal Damper Foot Pedal for Digital Piano MIDI Keyboard Electronic Organ Synthesizer, DK-1 - Walmart.com
Roland PK-5 MIDI foot pedal controller/keyboard | #1475557710
Universal Piano Sustain Pedal Keyboard Foot Damper Pedal with 6.35mm Plug for Casio Yamaha Roland Electronic Organ MIDI Keyboards Digital Pianos - Walmart.com
Nord PK27 Midi Foot Pedal Keyboard 27 Note – Fleet Pro Sound
Midi Sustain Foot Pedal For Yamaha Piano Casio Roland Keyboard w/ 1/4 inch plug | eBay
Tearing Apart An Organ And Making A MIDI Keyboard | Hackaday