The next time you’re wandering around your favorite craft store make sure to stop over to the jewelry section and browse through the Crimp Tubes and Crimp Beads. If you can find some copper or gold colored Crimps, pick them up. They make excellent basing materials for simulating Shell Casings. I buy large and small Crimps in order to represent the Shell Casings from Warjacks as well as troopers. I litter the base with them to make it look like someones been blasting away and leaving brass all over the battlefield. Simple, but effective.