For the last few months, Fabric Mart has had a selection of medium weight synthetic knits with metallic foiled designs. The listings say they're "from the same manufacturer that creates leotards for Team USA Gymnastics." If so, I'd still guess these particular fabrics have been dead stock for a very long time, because they have a distinct air of Early 2000s Cheese to them that I of course found irresistible.
I ordered three different prints when they were $2 per yard, then went back for a fourth when they were briefly reduced to $1 per yard.
One of them I wanted to make into leggings, but I knew not only that they wouldn't be stretchy enough to use my regular tights pattern (which is another possible hint at the fabrics' age, from back before spandex started infusing everything), but, even if it would work, the print was too strongly geometric to use with that no-side-seam pattern. I decided to try the tights part of Simplicity 8042, which I had only made once before, and six years ago, and very disapointingly.
I was determined to make them work, and, after a lot of pinching and sewing and pinning and sewing and sewing again to make things less angular, I got where I wanted.
They are aggressively shiny.

