Not only does the Blender community want to share their work, they want to share their knowledge. Many people take it upon themselves to produce tutorials (text-based and video) to demonstrate how to accomplish a particular task. I used a couple of these to figure out the best way to 'unwrap' and flatten a model so I could apply the Spider-Man texture. After unwrapping, I copied the layout and sent it to GIMP (an open source image editing program) where I re-created the familiar red and blue webbed suit.
It's not an easy process, but I'm sure as I create more textures I'll get better at it.