Have you ever embossed your chipboard? I know that companies like GCD make tools to pound shapes into chipboard and those are fun, but you probably have tools at home that can be used to create embossed designs on chipboard. The real trick is to dampen the chipboard by spritzing it with water first. Then you can use anything from pounding it with a meat tenderizer, to embossing folders. I am going to show you my favorite way.
Basically you need naked chipboard first. Next you need embossing folders or templates of any kind and a way to squeeze or pound them. You can use a
Quickutz hand tool like I have, another embossing machine, or just a place your chipboard on the sidewalk and use a mallet or hammer! :) I used this old
Circles Goosebumpz embossing folder from Quickutz so I could make bumpy dino skin looking chipboard letters.
Here is my example after painting, sanding, and inking - followed by the step by step photos:

Step 1. Spritz the chipboard with water so that it will take the impression easier.
Step 2. Place the chipboard face down on the depression side of the embossing folder. I have used a metal
Quickutz folder and a plastic folder. Both work well.
Step 3. Place in the
Quickutz handtool and squeeze. Or use a hammer on a hard surface.
Step 4. Allow to dry completely before painting or inking.
(Click to enlarge the images)