I really like old, beat up leather details to contrast all the metal on a motorcycle. Leather battery boxes or covers can be made out of things like old ammo pouches or they can be handmade. The one pictured here is by Old Empire Motorcycles. Here's what you'd need to make your own.
|Old Empire Motorcycles |
This one is from the Club Chopper Forums:
|from Biker Net|
|WWII ammo pouches show how the leather parts are put together.|
|Steampunk-inspired pieces replace stitching with rivets.|