I recently decided to order a custom skin from skinit.com
using a scan of a vintage watercolor by my great Aunt. I found it very easy to use their online custom software. I uploaded the image, making sure it was high res and the right size. when I was happy with the positioning I submitted it and completed my order. It took about 10 days to get it and I am very happy with the result. It was printed nicely, covered my Kindle well and looks great. The only thin is they do not cover the buttons, as decal skins do. I actually do not mind this but it is something to be aware of.
I also ordered a new apple green Go M-edge cover
to match. I really love this cover. It is just simple and beautiful. Lovely quality in the leather and stitching and it uses the hinge system with two added corner straps for extra security. Light, simple and folds back very easily. Also not too expensive at 29.99.