Blow up a balloon, cover it in doilies using a craft glue. When it's dry, pop the balloon & you have an awesome decoration. Bet you could use it as the lampshade on a small pendant light, too. Great-gramma's and my MIL's doilies may find another use.
I like the one on the bottom left. Cubed Cranium Couture Photos House of Architects Millinery are a seriously elusive design house but they produce some crazy and wonderful hat designs. These origami-inspired hats by House of Architects Millinery