If you're going to buy some Puerto Rican stuff, make it something worthwhile and get a hat. And go to this shop. Not only do they have everything, but the hats are great and the service excellent, and the prices aren't bad.
As a hat guy, I particularly enjoyed the opportunity to pick out my own hat band and then watch while the guy put it on the hat of my choice. Tell them you read about it on IgoUgo.