I think you have two decisions to make here.
First, do you really want to spend your time "working" rather than sewing/quilting for pleasure?
Secondly, if you do want to "work" you need to set your price, and $20 for a small quilt is not nearly high enough.
I understand that you are FMQ'ing these on your home machine. Don't sell yourself short. If FMQ'ing was easy, we would all do it and not have to send our quilts to people like you or to a LA. Someone suggested that you find out the going rate with the LA's in your area. That is a good idea.
Lastly, where are all of these quilts coming from? Is your DH's Aunt the middle man? And if so, what is she charging HER CUSTOMERS?????
Please give this some thought before you get into something you would rather get out of.