DH suggested this to me years ago but I told him "sewing is my pleasure I don't want it to be a job". My answer would be the same today. Not to say I haven't done sewing and been paid for it. I was commissioned to do a quilt several years ago and was paid $300.00. I was told to charge at least $500.00 but as it was a friend of DH I couldn't charge that much.
At the moment I'm making 8 Bowtucks Bags that I will be paid for. I'm not making any money though by the time I count fabric, threads and my time.
I get far more pleasure from the charity quilts etc. I make. Made 10 pair of shorts in a day last week that gave me pleasure to make as they were for Project & Care.