I am a fan of Google Definitions. When I started this post, I realized I had no idea where the word doily came from or its full meaning. So from Google Definitions:
plural noun: doilies
- a small ornamental mat made of lace or paper with a lace pattern, typically placed on a plate under a cake or other sweet foods.
late 17th century: from Doiley or Doyley, the name of a 17th-century London draper. The word originally denoted a woolen material used for summer wear, said to have been introduced by this draper. The current sense (originally doily napkin ) dates from the early 18th century.
Google Definitions has more stuff too, like a translator (hence the multilingual title for the post) and a graphic that tracks usage over the centuries.
Now that we are clear on the word, we can state with confidence that doilies are very pretty and practical in wrapping.