Here are a couple of pieces which have been released as Thunderstone: Numenera cards from AEG, and also appear in the Numenera Core book from Monte Cook Games.
First up is the Chemical Injector, originally called a Virtuous Admixture (I think that was a much cooler name!) in the art description, here is how it was described:
"This is a high-tech injector, full of a frothy yellow liquid—like a Red Bull in injectible form. The hand holding it is kind of grimy, with bad nails. A low-tech person is using this high-tech device."
"This broad sword has a glowing blade. The cutting edge has a blue sheen to it, like there's a line of monofilament or something that lets you cut so sharply, you can cut SOULS as well as bodies. Whoa!"
My initial design was a bit too 'generic fantasy sword' in style and didn't have the unusual-tech influence we were going for in Numenera. As you can see the revised sketch (below) captured a more unique design...
|Bio-energy Cutter Sketches|
And I think the final illustration is much better for it (and I think one of my favourite equipment pieces I worked on!