This is Magpie, a teenage superheroine that I designed when I was about 15. She has power over anything that shines, and can make small amounts of solid, naturally-occurring shiny materials like obsidian, gemstones or metals. I've been told that's a stupid superpower, but part of the point was meant to be that she has a stupid power and has to learn how to use it creatively.
She used to have a much more boring costume, which I can upload a picture of if anyone's specially interested. This costume is only about a year old.
She can also get walnuts out of their shells whole, there is some debate as to whether this qualifies as a secondary superpower or not.