If you just want to paint it, cover a cutting board with painter's tape and then tape a print out down to the board and cut it out. Then lay the painter's tape stencil down on the case. You will probably need to use an x-acto to lift the small pieces up to prevent tearing, and use the cutouts to align the thinner pieces. You may be able to get Kinkos (FexEx Office?) to do it in cut vinyl as well if you have a vector file.