The fake peanut lighter in the link above has a round bottom. I don't care. Plus, I like the look of the round bottom for a necklace. Wait. Are we still talking about lighters?
Here is a slightly bigger lighter at DX with a flat bottom:
http://www.dealextreme.com/details.dx/sku.10079What do you store in these? Tinder?
I bought a few containers. I will be storing tinder, specifically cotton balls infused with Vaseline or Murray's Beeswax. In another container, I might store a peanut lighter to keep it organized with bike inner tube (waterproof tinder). I may use another container for storing matches, a flash drive or other small survival gear like fishing line. There are many uses.