I need a quintessentially English item to auction.?

I'm going to a summer camp in the US and they have asked all non-US staff to bring an item from our country (and gave the example of a rugby shirt) to sell at an auction to raise money for charity. I want to get something rather awesome and slightly more orignal than a sports top. I was thinking about a proper bowler hat, but they are rather expensive. I only want to sepnd around �15 on such an item. Any ideas?