Build smart, custom mechanical keyboards for MIDI - or really tiny Ableton Live control - CDM Create Digital Music
Strait Music - Novation Launchkey Mini 25-Key MIDI Keyboard Controller for Ableton Live
Novation Launchkey 61 mk3 MKIII MIDI Ableton Live Music Keyboard Controller w/ Pads (works with Logic, Garageband, Studio One and more!) - 815301001287
Akai Professional USB MIDI Keyboard Controller 25 Keys with 40 RGB Pads and 8 Rotary Knobs with Ableton Live Lite APC Key 25 MK2 Black - Walmart.com