I can only customize a few of our items...mainly phone cases and wallets. My lasers only work on wood but any local trophy shop can engrave the watch backs or jewelry. If you'd like a custom phone or wallet, you would need to provide a jpeg design and it needs to be black and white (no grayscale). Basically, it should look like the existing designs. Send me an email w/ the design to brett@ponowoodworks.com A custom design will run you an additional 10usd...CLICK HEREfor the custom product page.