Instructables is a site which hosts DIY projects and is a platform for people to share what they make through words, photos, video and files. We have gone through the many MIDI DIY projects and picked our some of our favorite projects. To see all the MIDI projects that are available on the site, just click here.
Laser Midi Controller - (Laser Triggered Midi Keyboard)
Flame Controlled MIDI Controller
Build MIDI Bass Pedals for About $150
Antique Light Bulb Organ - MIDI/OSC Controlled
Arcade style DJ MIDI controller
Converting a rescued toy into a MIDI controller
Dub Cadet: Holographic MIDI & LED Controller for Arduino - Part 1