The Imperial March, also known as Darth Vader's Theme, is such a staple in the Star Wars franchise. Any time the notes to the musical score start, it gives you some sort of feeling. Maybe it's associated with a feeling of fear, a source of adrenaline, or a feeling of excitement. How about being soothed by it?
Were Nerf guns a big part of your childhood? Having to reload the foam bullets and also losing the foam bullets under things to never be found again? Well ThinkGeek might be able to help you up the ante with Nerf wars.