Several years ago I bought a set of nesting pop-top tins from Keepsake Quilting (I think) - what I liked is that anyone with arthritis could easily pop the thing open and close it without having to grip it in any way. I cannot find it in any of the catalogues, but this is what it looks like:
http://www.qualitylogoproducts.com/t...op-minttin.htm. If you can find this, terrific - if not ...
Our local JoAnns sells Design Trends brand LOCK-UPS, which are storage cups that seal tightly and stack; they come in various sizes. For my guild gift exchange, I got the one that's 1 1/2" deep and then topped it with a home-made pin cushion. The pins can travel neatly inside the container to class, and the twist closure ensures no spillage.