Here is a short video tutorial on how to add an image (eg logo, eyes, tattoo ..) to a texture in Blender. Hope it help to you ...

How to morphing shape and texture quickly in Blender. Transforms objects both in shape and in material. Subscribe!

So he shows how to use Blender to create specific textures to produce things like wood-like or leather-like surfaces, for example. You can see how it works in the video below.

We’ve seen a few different ways to add textures to 3D prints, including using Blender to modify model surfaces. Textures can enhance the look of a model, and are also a good way to hide layer lines.