Mary and Hannah's room

One of the projects that we have planned is doing the girl's room. John and Jared worked on installing the replacement windows today. They went in easy but getting the old ones out proved to be a bit of a challenge. John had to remove drywall around the old windows in order to get them out so needless to say we have a very dusty mess in the girls room! Next after clean-up is getting the border down and get some paint on the walls. Mary wants navy blue walls with lime green and turquoise circles to accent on the one wall where her bed is.These are the colors on her comforter. Not sure how I'm going to get even circles painted...I can probably do an amoeba shape ^_^ but I'm not that artistic so if any of you have an idea on how to get circles, I'm open to suggestions! ^_^