Recently I moulded most of my doily collection into little plates and bowls. Each doily is dipped into Plaster of Paris and is then coated and gently baked with a layer of sealant. This makes the delicate dishes slightly more robust and water-resistant.
They look good used as tea light holders, hung on a wall or placed on a shelf.
Here’s a delightful definition to enjoy:
A doily (or doilie) is an ornamental mat, originally the name of a fabric made by Doiley, a 17th-century London Draper. Doily earlier meant “genteel, affordable woolens”, evidently from the same source.
They are crocheted and sometimes knitted out of cotton or linen thread.  Openwork allows the surface of the underlying object to show through.