Step 1: What You'll Need
Ne10 Stencil, scissors, a Sharpie fine marker, a scrap piece of matte leather, masking tape, and a sewing machine. (Your sewing machine should have a heavyweight needle and heavyweight thread for this project.)
The leather you use for this should be matte and not glossy in finish (it will hold the text better). You can usually buy scrap pieces at your local leather supplier cheaply.
Using your Sharpie, fill in your alphabet letters. Use a piece of masking tape to help keep things straight.