Aldi are doing their travel sweets this week at 99p. the tins are steel and make a great char cloth tin. I use a little wire wool to remove the paint round the rim and then it wont weld together with the lid when heated. My last one is still going strong after a year.
http://www.aldi.co.uk/uk/html/offers/special_buys3_24542.htm
http://www.aldi.co.uk/uk/html/offers/special_buys3_24542.htm