Hi everyone,
Since I made an account here to vote for the canon contests, I thought I might as well use it to talk a bit about my creations here.
I’ve made quite a few custom parts since 2013 and the latest one is an articulated version of the Metruan limb :
It may look easy, but I’ve actually spent a long time working on it. The reason is that I really wanted to include a functional piston, just like on my articulated Mata leg. However, due to the original Metruan limb being so small, I couldn’t find a proper way to include it without straying away too much from the original part, so I, reluctantly, left it fixed.
There’s still one stylistic change I made : as you can see, I took some liberties and replaced the cross axle with mechanical details.
It may not be to everyone’s taste, so for those who prefer a part that’s more faithful to Lego’s version and easier to integrate into MOCs, I’ve made a variant where both parts have the cross axle :
(Thanks to @Piruk for the renders)
In that case, a cut flex axle or lightsaber has to be used to attach the parts., but the two versions have no functional difference. Their range of motion is the same - about 105° :
The two variants can be ordered on Shapeways, and more options should follow soon. 
