T-shirt design

I need a really cool 1 or 2 color t-shirt design for an anti human trafficking campaign. I will need 3 unique draft designs to choose from. These can be rough draft quality. Once I've chosen a design you will need to finish the design (and make minor adjustments) and also create a simple coordinating 'tagline' for the back. The t-shirts are for teenagers and need to be really cool! If you want an idea of what type of designs I would like, check out [login to view URL] but DO NOT copy their designs! As I said, the design is for an anti human trafficking campaign. We are using sports activities to raise money to support 2 human rights organizations. Our theme and website address is 'We Can Make Slavery History'. A suggested campaign name is 'Play 2 Free'. Someone looking at the shirt should be able to tell that the person wearing it is using sports activities to help end slavery. Just for your information (not needed on the shirt), the shirts are rewards for participants who reach their fundraising goal. As an example, a participant might play basketball and ask family/friends to pledge a small amount of money for each point scored during a basketball game. Thanks!