Unlimbited flexy test
This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/4DP6BiaH9ZQ
I sized up and edited the Team Unlimbited Alfie Arm so it would fit with the "stock" Flexy Hand 2 from gyrobot. The "stock" Flexy Hand 2 is roughly 1.3 times the scale of the typical stock Enable device (i.e. the Raptor or Phoenix or something like that).
I've tested the design with a full sized flexy hand and the hinges fit nicely. More work is needed to smooth it out and make it a bit more aesthetically pleasing, but it's functional.