-Painter's tape (or washi tape works too)
Once your tape design is complete, go back over all of your tape with your fingers and make sure it is stuck down firmly and smoothly. This is probably the most important step to this project because if paint leaks through your tape, it will lose the whole effect.
When you feel confident your tape is secure, it's time to get to work painting! You luvvies can choose whatever colors you want. Some people may prefer to use only one or two colors, while others of us may use every color they can find. It is most likely going to take at least two coats of paint for each color.