I'm planning to make some tie dye t-shirts for our trip in December, but I'm not "getting" it! I know to stitch the floss around a mickey shape and pull it to gather it. Do I do that on both the front and back? Once that's done, what do I do with the rest of the shirt? How do I go about applying the dye? Anyone have a more detailed description or photos of the process? Sorry to be such a dork!