Another place to consider is the local senior centers where they have quilting classes or quilting get-togethers. At my senior center, we have about 3 classes a week where we all get together and just sew our little hearts out. I don't know why they call them 'classes' as no one teaches anything and most all of the ladies have lots and lots of experience in quilting.
I'd say anywhere the quilters gather would be a good place to put out some flyers to sell your baby.