Think you're good? Let the Doctor tell people how big your ego is!
This is from the Daleks vs Cybermen episode where Rose Tyler gets stuck in the parallel dimension at the end. The image in particular comes from the scene where he explains that his 3D glasses help him detect what's been through the Void between dimensions.
I have been using this spray for a while, and at the insistence of fellow Doctor Who fans I have been playing with, I uploaded this spray for all to enjoy.
Update: General improvements to the image.
I'd like to note that while I'm unable to get rid of some of the white background from the base image, it doesn't show up when used on any map.
Update 2: Remade the file after I noticed it was sitting on a black background when sprayed. If downloaded after first update, please download the new one.