The Imperial century folk have been using gold stars for some time to mark their yearly achievements. Us lesser mortals in the half century challenge wanted a mark of recognition too, and some of us have been using a 'half-star' (as in my sig line). But the metric century folk deserve something too. So I have found/made some stars, trying to get the gold one similar to the one already in use. Option 1: gold, silver, bronze for imperial century, metric century, half-century (which includes both metric and imperial) Option 2: gold, silver, half-silver My own preference is (marginally) for the half-silver one, as it reflects the half-century part of the challenge. I'm making it a sticky and will leave it for a couple of weeks. Then folks can just copy whichever star they need from the above to add to their sig lines.