How to make fairy wings out of household items?

My friend and I really want to be fairies for Halloween. My aunt is a fashion designer so she is making the dresses of our dreams but we used our wing money so that she could pay for the materials. So we need to know how to make wings out of things that could be outside (we live in a woody place) or just laying around the house. Coat hangers might work we just want them to look nice and match our dresses (one's pink and green and one's dark blue and light blue). Please help and if you are chosen as the best answer we will send you a picture of what they look like. Thanks to those that help!