A DPA-style mount for Audio Technica Lavalier microphones. Confirmed works with the Pro 70 and at831b models.
Things you'll need:
Everything should fit together nicely. I snipped 8.5" of the wire for the gooseneck, but you might want more depending on the need. File down the ends of the wire to be flat, then slide 3x the cable clips onto the wire. Finally superglue the ends of the wire to each side.
To put the microphone in, slip a foam windscreen over it first, then slide it into the the mount. It will hold in place with friction.