Here is another example of my sketches that I took a photo of from my cell phone. I then used GIMP to jazz it up a bit. Using photographs, even bad ones, provide endless possibilities for altered art. With this, all I did was draw the sketch, photograph it with the phone, download the photo to my e-mail, create a temporary file on the desktop, and then drag the file to GIMP to do the alterations. This makes it possible to store artwork on my blog even though I am currently without a computer of my own.
Source for sketch: Cocker Spaniels, Bart King, T.F.H Publications