I just felt like this wall was missing something. So I painted diamonds using leftover gray paint from the lighter two walls. I love how it turned out! It was a little trickier to do than I had expected.
(More after the jump...)
I ended up making a diamond shaped template out of contact paper. I drew horizontal rows in light pencil to make sure I stayed on track. I moved the template around and marked the diamonds with blue tape. BTW, I bought my blue tape at the Dollar Store and my lines still came out great.
I trimmed the torn edges of the tape at the diamond corners with an exacto knife (using a light touch).
To avoid absent mindedly painting the wrong diamonds I marked them off with a bit of tape and then got to work with my paintbrush.