Yaeltex - Custom MIDI controllers - Design your own hardware
Make Your Own Custom USB MIDI Controller With Encoders & OLED - Etsy Canada
Amazon.com: Midi Controller, lotmusic Worlde TUNA PANDA MINI 25 Keys Portable USB Midi Keyboard with 8 RGB Backlit Colorful Drum Beat : Musical Instruments
Oxygen Pro 25 | M-Audio
Custom Modular OSC / Midi Controller | Check out this custom hardware controller a customer put together with our MakeHaus modular hardware for controlling lighting, screens, cameras and also... | By MakePro X | Facebook
Tindie Blog | Extensive Customizable DIY MIDI Controller!