Paint the wall in flat color then use the same color but in high gloss for the design! LOVE this idea! But flat paint sucks so have to do it in low mess area, don't try it in the bathroom or kitchen, or get a low gloss and high gloss version of paints
DIY: Tuscan Faux Paint Technique - easy tutorial on applying this great paint technique to your walls. -- This is for my crazy idea of making a tiny house out of a grain silo. This technique would be perfect on the concrete block interior.