This is a pretty old article but I’ve really been wanting to try this.
http://cre.ations.net/creation/t-shirt-designs-created-with-stencils-and-bleach
It looks pretty easy to do. Some water, some bleach, and a stencil. I have some adhesive laser label sheets that might work well as a stencil. I’m willing to give this a whirl if someone wants to do it with me. Maybe this weekend. I’ll post pictures if anything comes about.