Fight Stopper

I'm an entrepreneur working on a new pet product. My Trademarked handheld product is called the Fight Stopper. Its used both as a shield and deterrent for dogs. I need your help with a creative banner design for this product. I have the actual product and digital images. I also have screen shots of dogs fighting at a dog park. I need to demonstrate within the banner the importance of having the Fight Stopper ready to use every time dogs are around each other.