I wanted the little wood veneers to be painted red to match the border strip in the middle. I just didn't feel like pulling out my paints though. That's when I remembered that I had Faber Castell's gelato pens in my stash! I originally bought them for my mixed media projects but have quickly learned that they are wonderful for stamping and altering things! I was able to color the wood veneers quickly, and with very little mess.
I highly suggest you add them to your stash. They are becoming my new favorite!