Sometimes, the best thing about making something yourself is making it to your own style or taste. For example, dying leather yourself allows you to customise the look of a project.
Whether you're making a belt, wallet, or electronics case, dying your leather adds style and personality, or can make it look less like a project and more like a product. Instructables user Jessyratfink uses leather dye (which you can buy at a craft or fabric store), vegetable tanned leather, jojoba oil, t-shirt scraps, cotton buds and a leather sealer to dye her leather.
All you have to do is condition the leather, dilute and apply the dye, then apply the finish. Hit the link below to see the full guide.
How to dye leather [Instructables]