3D Printed Toe Clamps

Anyone else using / experimenting with 3D printed clamps?

I found some interesting toe clamps on thingiverse (Low profile toe clamp system for Tormach xsTech Router by themrshaffer - Thingiverse), and gave them a shot. Tried a modification as well for more positioning flexibility.

I would love to see / hear other ideas people might have for CNC router specific work holding that could be 3D printed - I am reworking my spoil board and want to make for more flexible and repeatable positioning.