Hi all! I'm inquiring to the masses: I'm looking for a soft case to carry up to 12 fixed-blade knives. The knives in question are trainers and about 9" long. As an instructor, I tend to carry a dozen or so with me on my way to and from class for the students. Somehow my memory thinks that I've seen a soft, roll-able case that would do the job, but searching on the internet has only found me $50 options, which I think is too expensive. A simple soft case would do, any suggestions? Thanks in advance.