Thanks so much for sharing your idea. It is great. Now just a bag for the pipes to take it with you to class.
I might use this for a portable one. And it is very flexible on what size you want to make it I guess you could just put different number of sections together.
Much less expensive than the store purchased ones. I just did a mounted on for my Mom with $5 worth of felt, slat from Home Depot about $5 and a bag of hooks about $3. I just sewed a sleeve in one end of the felt and put the hooks in the wall. Took me about 3 hours including the shopping and driving.