I was looking into "semamori," which is a Japanese custom of embroidering an amulet or good luck symbol on the back, under the collar, of a child's kimono.
Here are some semamori with assorted threads.
So, armed with inspiration from textile artists Emily Barletta and Helen Parrott, I got out my hand spun paper yarn with copper leaf, and a piece of indigo dyed watercolor paper. http://emilybarletta.com/section/204626-paper.html
Here's the piece I embroidered today. It's not quite finished. I'm trying to decide about a stitch on the edges.