I love doilies ...especially the paper ones. There are so many uses for them besides coasters or draped over some random piece of furniture.
Ruffled are one of the best versions as they use vellum to back them. This clear vellum makes the insert easier to slide in and out as well as making the envelope crisp and more durable.
If you are looking for colored paper doilies , try "The Paper Doily" ( Left) or "Pretty Parties" (Right)