Prehistoric tribal nipples?

:P Do you mean National Geographic style where they protrude out extra far or just the base is big?
You don't want implants because they will stretch the nipple. Some surgeons will reshape nipples but I'm not sure the long term side effects of that when it comes to breast feeding. On the flip side at least we're able to cover up our nipples 99% of the time. Well 50% of the time if you're name is Paris Hilton.