I had been searching this Reddit for a good travel pouch, and found this link on the reddit. But it takes a picture to do it justice. On the left is the eBoot Earbud Case. And on the right is the Spinetic Spinner Pouch. Both have a mini falcon in them for comparison.
The ones for earbuds actually have a little more room inside, and a harder shell. The carabiner on earbuds is not good for much and will break, so if you want a clip the Spinetic Pouch wins there. But considering I got 5 of these cases for 9.99 shipped (prime) I think they are great.