First you need to measure your strap and than on paper design your motives or anything. If you have a digital pen tablet device , you can design it straight forward In Adobe Illustrator or Coral.
This is me experimenting with different decorations and getting an idea how it would look.
This is the laser cuter etching the design onto the leather. It's super freaking AWESOM!!!
Finished design , painted with acrylic paint.
Also added a special effect to let it glow in UV light
Have a look at my Designs at www.be.net/alexsatriani Thanks for your interest.