I agree with Anna, Rice paper. I bought the round type made in Vietnam. You soak them in water just until they become pliable, lay them on a piece of parchment paper or a silicone mat, shape them with your fingers and allow to dry. They dry very hard and can be painted with edible luster dust or petal dust mixed with alcohol. I found the rice paper circles on Amazon, very inexpensive. Here are some I made.
Shirley
