Lay out paper the approximate size you would like your finished decal to be. You can see I had to tape some paper together to get it the size I wanted. Then draw out your decal either using something as inspiration as I did, or out of your head.
Mix up your starch paste:
Mix 1/4 cup cornstarch into 1/2 cup cold water. Then add 4 cups of boiling water and mix together. Let cool.
Get tired off your decal? Simply peel up the edge and pull off. Wipe your wall down with a clean, damp cloth.