plain white paper
small white paper plates
Here is what she'd made by the time I checked back on her:
She made a pretty design on the paper plate. Then, she got a pair of her Barbie's pinky-purple tights. She chewed a hole in the paper plate and strung the tights through the hole. Last, she tied the tights in a knot (something she's very good at, by the way) and she had a beautiful, creative refrigerator decoration.
It's amazing what children can do when given a few simple materials and then left alone with their imaginations!!