eQuilter was mentioned before as selling 1/2 yards -- they also have their scrap packs which are wonderful stash enhancers, but ti depends on what you are looking for and what they have. I've gotten a few and was always happy.
https://www.equilter.com/category/38...se-scrap-packs
Again, you don't know what you will get, but they also have precut packages in various sizes like:
https://www.equilter.com/product/121...orgeous-greens
or, just one left of green batiks
https://www.equilter.com/product/290...quarter-packet