How to Customize Your Own Skins for Your Phone
- 1). Measure your cell phone's dimensions in inches.
- 2). Round the measurements up to the nearest half inch.
- 3). Multiply the inches by 200. These numbers are the number of pixels your image should be.
- 4). Open your graphics program. Use RGB colors and 200 dpi or dots per inch.
- 5). Create your own image to use as a skin. The end image should be at least 500 KB.
- 6). Print on skin paper with adhesive backing. Trim paper according to your cell phone's dimensions, and peel off backing. Stick to your phone, working from the center of your phone out.
Source...