Not sure if it was here or at C&T, but someone posted a pattern for a flat cap (wrongly called a 'newsboy cap'). I thought I would try it out and decided to make it out of a worn-out pair of jeans. I managed to do the whole thing in a few hours (about three and a half, inbetween cups of tea).
I did it pretty rapidly, so there are some effects of carelessness, like the lining being off centre (though I did quilt it myself), and the peak a bit off centre, though it's virtually unnoticeable in wear. It's nice to do something that can be finished quickly for a change.
Anyway here are the results, it has a sort of 'workwear' look:
(edit: I think I've put this in the wrong place!)