I am stash-busting my Darn Good Yarn! Finally.
I have enough to make a market bag with the Size 4 yarn in various colors.

The ‘Pink Flamingo’ yarn says it is a size 5, but is comparable to the other size 4 yarns used in this project.
The ‘Machu Picchu’ yarn says it is a size 4, but seems thicker than the size 5 ‘Pink Flamingo’ yarn.
Both yarns were a good choice for the bottom half of the bag because they are sturdy. The other yarns are a bit softer and give it flexibility for the top half.

I would recommend this pattern for using any of these yarns alone for the complete project.

The pattern has a slight error in Round 29. It says to do a 1SC in the first 14 stitches. I did that as written, but, it should be HDC instead.
You can’t notice it with the yarn I used, but if you are using a solid color you might notice it.