Here are the Hardly Dangerous Illusion Stickers that are the .38 Caliber Size.  These come 6 per sheet and look authentic, just place them just about anywhere.  Fun Practical joke or inspired accent to your current vehicle or item.

These high quality stickers when applied to your car, motorcycle, helmets, walls or just about anywhere will make it appear that it was riddled with bullets.  Easy to peel on and they are removable too.