What you need:
Crayons- you want to make sure they are pretty good quality-I used Crayola- this will make your colors much richer and brighter. You also might want to pick the colors yourself if you are wanting to create something to match a specific room in your house.
A stove or what I used was my scentsy warmer. Any candle warmer will work
A piece of paper for your art work.
Watercolor paints if you are wanting to create a few dimensions in your image.