This texture was created from the following photo . . . which is of the dirty back window of a pickup truck that lives in the neighborhood . . . I used features in Picasa as well as IrfanView to come up with this texture . . . and part of the process involved creating a double exposure collage using a texture from playing with PSP . . . let me know if you need a higher resolution version . . . and I'll send it to you . . .