State of the Loop – Dedicated Foot Controller for Looping with Ableton Live – Sonic Bloom
MIDI Controllers for Looping - Performance Looper - Live Looping in Ableton
MIDI based Piano Pedal Looper – matthew bickerton
DataLooper – The Ultimate Ableton Foot Controller
Amazon.com: Novation Launchkey 25 [MK3] MIDI Keyboard Controller for Ableton Live & M-Audio SP-2 - Universal Sustain Pedal with Piano Style Action For MIDI Keyboards, Digital Pianos & More : Everything Else