My machine was empty but I didn't really have anything suitable for backing, but I did have lots of white. I decided to soften the bright white with a little tea staining.
I began by heating water in my stock pot and adding some tea bags. (This whole process was a little but of guess work.)
I brought the water to the boil and let the tea steep for a few minutes until it was quite stong, and then removed the tea bags.
I removed the pot from the heat and added my bright white fabric. Be sure to stir well. I let it sit for about an hour. I would recommend stirring it quite often to avoid any dark or light spots as the fabric peaks out of the top of the water.
I drained the fabric in my kitchen sink and wrung out as much tea as possible.
Then I let it sit in a cool water rinse for about 20 minutes to help set the tea stains and rinse out any residual tea. You may want to do this more than once.
Here is a look at how the quilting turned out - almost finished!