Your mother-in-law is a wise woman
You are equally as wise to start a website. you'll see that this venture can attract a lot of attention. Start on some free advertising sites to get attention of people. Meanwhile start a Facebook page as well. Make sure your competitive with the market, Maybe 10% cheaper, that's what I'm doing. JoinIng groups will help as well. This group is a perfect start.
Distribute business cards at places that have bowls that collect them, or have boards where you can post your business. Its a lot of work but I suspect you know this already myself as well as others here I'm sure will be happy to help you as much as we all can.
Good luck,and post your success.