Choose a fabric for the front, cut out batting for the middle...
If you have scallops to work with, just cut your front fabric a 1/4" larger for turning under.
Using the large doily as the back fabric. Simply pin the pieces together, and you have a nice project that you can work on while watching t.v. or traveling.
I hand-quilted, starting in the center and working my way out.
This is double the size of a coffee coaster, so that's why I'm calling it a candle mat. I even thought of placing a large glass bowl or vase on it.
Depending on the fabric that you choose, this can really be gorgeous or maybe you'd like to play up a theme.