Mark ½ inch from both the top and bottom of the paper.
Make ½ inch vertical marks all the way across the paper.
Use the scissors to cut along your ½ in vertical marks, starting from one side all the way up to the ending horizontal ½ mark. Stop then cut out the next line.
This time, start from the other side. Again, make sure to stop at the ending horizontal ½ mark. Repeat this process of making cuts starting from alternating sides.
Carefully unfold your paper and stretch out.
Repeat the process for the rest of your paper colors.