The main ideas are to have a textured source and to play around with filters that manipulate the look of sketched-out lines and doodles.

The Tiling Texture Pack is a collection of 100 high quality seamlessly tiling textures for use in any 3D application. The maps can be used for many purposes, from creating roughness maps to adding dirt and grime, to fingerprints, smears or cracks.

The french monkey – Grunge Pack | 206 MB

CG-textures: Grunge textures megapack is a huge collection of high resolution grunge (grunge) textures. These are themed textures of dirty, old and aged surfaces, cracks and craquelure, peeling paint, paint splashes, old painted surfaces, brush strokes and painted textures, scratches and scratched surfaces, "marble" paper and much more - over 700 textures!

A large collection of grunge textures, high resolution, more than 300 pieces. The collection includes designer grunge textures, brick walls, grung metal textures, paper, burnt paper, wall surfaces, paint and cement, concrete, grunge textures of old walls, road coloring, textures of scratched surfaces, background grunge textures and much more.