Leaf Audio Contact Microphone 3.0m/3.5mm – Thomann UK
Designing and building an active contact microphone for field recording and sound design — Ezra Gray Audio - Sound Engineer & Sound Artist in Dorset, UK
Korg CM200 Contact Microphone for chromatic tuners
Building A Simple Durable Contact Microphone – Zach Poff
hydrophones and contact microphones - hand made in yorkshire by JrF: c-series contact microphones
High Quality Piezo Contact Microphone, Piezo Transducer, 27mm, 120cm cable, mono jack 3.5mm
How to Make a Contact Microphone : 4 Steps - Instructables
The first rule of CONTACT MIC club – Music of Sound
building contact microphones - john grzinich
Building A Simple Durable Contact Microphone – Zach Poff