One of my favorite laser engraving projects was adding a graphic to the back of my iPhone 7+. To align the image, I set the piece size to the dimensions of the phone in CorelDraw. I then added a photo of the rear of the phone to the design and made it translucent. I then added my graphic over that, and adjusted it until it was a good size and position on the phone. I then deleted the phone image, leaving me with the aligned graphic to be engraved. To test it out, I covered the phone in masking tape and ran the laser at a low power setting to mark the tape. When I was happy with the result, I ran the laser at full power without tape to permanently etch my phone.