I make quilts cheaply using second hand materials, including our old worn out clothing and bedding. I will buy secondhand blankets from charity shops which I save up to use as quilt batting/wadding. A quilt can be as simple as a woven blanket sandwiched between two flat sheets. They can be made with a sewing machine or entirely by hand (I have done both).
Eleanor Burns has a youtube channel called Quilt in a Day which has a lot of her old PBS episodes of the same name.
Here's a fancy one I did almost completely by hand. The white background fabric came from an old stained tablecloth, cut strategically--and the flowers and leaves were just odds and ends of old clothes from my rag bag. My other quilts are much plainer than this!
I should add that if you want to buy handmade quilts, they are pretty darned expensive! I was looking a few years ago, and $500-$1000 is a pretty standard price range, and it has to do with the time it takes to make them. I make them because I enjoy it :)
I got a reply from her right away today. She's normally pretty reluctant to quilt for sale since it can be hard to get a fair price out of most people (everyone is used to sweatshop prices at big box stores) for the time spent. She noted that her trips to Amish country has shown that the range for things she typically makes sits around $900 - $1500. How much would depend a lot on what the person wanted and though she didn't say so, I suspect she'd want part of it up front so that if the person backed out, she wouldn't have lost all the material costs and time entirely.
My kids prefer blankets over quilts so I am making loads of them. It's really simple, just sew two layers together. the double layers provide much more insulation than the single one. I usually use fleece/minky for one, and flannel/fleece/double knits for the other.