I also had a cigar box we had picked up in New York and I decided this would make a good display case for the rectangular pendants, Adding open eye hooks and some bamboo kebab skewers in the back of the box to stop the pendants swinging back when I stood it on a display stand, I think it works. I also added eyelet screws on the box lid to hang a pendant with ribbon attached.
Finally I needed a ring and brooch display case, and had seen on the internet examples of how to make one using a frame box, foam pipe lagging and material. I borrowed a sectional frame box from mum, and cut up pipe lagging to fit into the sections. I then chopped up some old denim jeans and covered the pipe lagging, pushing it hard between the lagging. I will eventually glue it, as I was short of 3 inch of lagging and had to use some cardboard tubing, I will glue when I get another off-cut and when mum forgets about me borrowing the box!