One of my readers [Thanks, Karen!] put me onto another terrific blog: The Nerdy Farmwife.
Here's her latest post on using calendula flowers in tea, with 14 uses for that tea. It's a wonderful post. http://thenerdyfarmwife.com/14-uses-for-calendula-tea/
Check out the site - she's an amazing amateur herbalist with a lot of creative things to do with herbs.