A pirate party dedicated to the fight against breast cancer? Sounds like the purpose opportunity to engage is some good-natured villainy to me! From their website:

Booty for Boobies is a crew of breast avengers raising treasure for the chests. We host an annual Pirate Party that is focused on the task of raising money that is contributed directly to Breast Cancer Research. Through the generous donation of sponsors we are able to give 100% of the door proceeds at our event to the American Cancer Society in support of their Breast Cancer programs.