You can sell a pattern for a square washcloth if you can find someone who needs to buy it.
It's the directions and explanations that are valuable. I don't buy many quilting related books any more but recently I saw an old magazine style book at a thrift store, it's all about various folded/dimensional techniques. More of the overlapping star sort of thing but others too, sort of like this project. I love the crispness and modern-ness of Onebyone's project. Very updated from the 70s calicos and posies in artificial earth tones.
Origami can be a huge resource for quilters or just a fun secondary hobby. I recently got a book and I really need to work on turning tip money into fancy shapes
but I did a lot of origami for years.
On my list of things to do this year is a dimensional bow tie, where you twist the fabric to form the knot in the center?? I remember it can be done but don't remember how and haven't a clue about the fabric cutting shape. But I'm sure I'll find it either for free or close to it when I do my internet search, but I would be glad to pay for directions if can't.
I have vision issues and I love my eye specialist. He has a funky fashion sense and often wears bow ties. I'd like to make a little wall hanging sized thing with bow times, some of which will be simply funky like his or he does some of the non-subtle basic dots, stripes and plaids that I have a lot of... plus somehow I have a number of fabrics with eyes and sunglasses or other glasses, plus I have a big enough piece leftover from another project that was designed to be a back, large scattered numbers plus glasses.