Moda's Oasis line or a Moda Buttercup I saw Tuesday would be perfect fabrics. Eleanor Burns has a easy quilt 'How Charming" that is scalloped.
http://www.quiltinaday.com/shoponlin...?i=20199&page=
or this one from Allison Quilt Designs
http://www.allisonquiltdesigns.com/p...dTimeLarge.jpg
Here's a special one with roses.
http://www.allisonquiltdesigns.com/p...per-Rosesa.jpg
You'd have to add scallops to the second two, but that's not hard. I love the Paper Roses if you're ambitious.