The other night I decided to get out my acrylic paints and a load of old stencils my dad had found when he was clearing the old house out.
I used one of his old shirts and just whacked down some watered-down acrylic paint through a selection of the stencils. I was going for some kind of decaying city wall look.
Think I might try a darker background fabric next time or even do some of the flour paste stuff first (check out this post).
I had a moment where I was thinking should I really be using acrylic paint for this but then I thought about how many of my textiles pieces I've actually washed over the years and figured it didn't matter.