I'm looking for a specific web-background


I'm looking for a background-pixure for a website. It's a picture that
you can repeat horizontally and vertically and I believe it has a size
of +- 200x200

I need te pixture to make an 'ugly site' as an example.

The picture must look like the surface of the moon or something.
Totally gray with black craters.

Anyone has a idea what I mean and has the picture (or knows where I can
find it)