The aluminum coffee tins (cans) that are used by the Illy company make great pinhole cameras. The round “ground coffee” tins have an air-tight, light-tight aluminum lid. I am hoping to find about a dozen of these before mid-December (2009). If you have any empty Illy round ground coffee tins (or similar) you can part with, I would be glad to pay shipping costs to ship them to me in Durham, North Carolina.
Please email me if you have Illy tins you can part with.