I found this bag tutorial a while ago and impulsively made one! It turned out to be easier than I thought it would be, although I made a pig’s ear of handstitching the strap together at the top. I didn’t have enough material so it’s shorter than it should be. And it’s quite floppy because I used quilting cotton and no interfacing.
Note to self – get some interfacing. The fabric I used is Trefle Matryoshkas Brown by Kokka Japan, with plain red lining. The result: