That's bullets as in lists, not bullets as in rubber or "dodge this".
A new CSS showcase, Stylegala, has the added bonus of including Bullet Madness, a listing of neat images that you're free to use to snazz up the appearance of your bulleted lists and navbars. There's some really nice ones there and even if you don't find what you're looking for, you'll certainly get some inspiration.
Not sure how to modify the appearance of bulleted lists using CSS? This westciv tutorial is an oldie but a goodie.