How about a small suitcase like bag. I got one with my set of bags that was especially for sewing. It had my sewing machine bag on wheels plus two smaller bags. They zip closed. One is more flat about 12 X 18" and about 5" deep. The other one is 9 x 18 and about 10" deep. I have used either one when going to classes, etc. My hubby got my whole set at JoAnn's a few years ago on sale for about $40 I think it was. They were marked down to half price.