I'd seen this photograph of Audrey Hepburn and Mel Ferrer and loved the look of the tweed coat containing them both, with its oversize leather buttons. I found this Harris Tweed coat on eBay and bought it. It turned out to be old and a bit moth-eaten, but some tender care had made it wearable - I think! Here it is - and no, I couldn't find a Hollywood star to share it with me for this shot!
This shot gives a better idea of the tweed's colour - the two large dark brown buttons are the originals, unfortunately I had to change them as one is missing: