Here's the Transformers logo - Autobot & Decepticon. Done the vector logo using Flash CS4. Edited it with Photoshop CS4 to add the texture and the cracks for the surface.
Click here to download the texture and the crack brushes.
Do check out the before and after viewer below for details » 2 different steps.
PS: Click on the logos for larger view.
TIPS : Slide the green bar to left and right to see the difference.