I recently bought a set of bamboo knitting needles as a gift. Last year I bought myself two sets of bamboo double pointed needles in sets of 5, one the usual size and one short - only 13cm long - for knitting small things. I bought them online from Hong Kong and I like them a lot.
The current gift set came from DinoDirect.The needles are 36cm long. I am not sure how good the 2.0mm needle will be in bamboo, but the other 13 pairs of needles will be fine.
I then set about making a knitting needle roll to keep them in, selecting a piece of fabric I bought in Bangkok in 2001. The fabric is meant for a long Thai skirt and top. It has two pieces, one with a brocaded border, the other a matching plain. I will never make it up to wear and I thought it would look great in a needle roll and perhaps later, a knitting bag as well.
I cut it to fit 15 pair of needles in width, and tall enough to fold inside at top and bottom to form a flap.
I cut lining from the plain fabric and used synthetic quilting backing between the layers.
While ties work quite well on needle rolls, I got inventive and made a casing for two elastic rings that I attached at one edge. They stretch over the ends and hold it closed.
I finished the cased elastic with a bright non-functioning button.