Start with a plastic bottle and remove the label.
Next mark where you want to cut (Forgot to take a photo,sorry), and cut with the craft knife.
Once you have cut the bottle, smooth it on the iron in a circular motion.
Out of this bottle, I got two bracelets.
Once it is smooth, you are ready to decorate!
I used sharpies to make a rainbow, but you can use paint and personalize it.
Once you are done painting, you can wear it.