Clothespin Mini Clamps/ Modular Clamping System

This turns a clothespin into a useful clamp for holding small parts, soldering, etc. The clamp includes a channel for adding elastic bands to increase pressure.

Also included is a holder that will hold four of these pin clamps in a vertical orientation. The clamps should click into place and release with a protruding button. This holder will fit along the edge of the weighted base of my modular clamping system.
https://www.thingiverse.com/thing:2759738

The holder requires 4 x No. 0 (4