Star and Thistle Tam

The Oamaru Textile Exchange has been selling buttons from the collection of an American who recently moved here. Every Tuesday she brings in some more and I try to find an excuse to go to town and have a look at them. Of course, many of them are quite expensive, so mostly I just look but I have bought a few. This tam uses one of them for its design - an old Czech glass button with some nice bits of inlaid cut glass. It has a nine point star so the tam is bigger than usual to show it off. The button you can see securely (I hope) sewn in the centre.
The thistles are there because they're flowering everywhere I look and when I remove them my fingers get full of prickles and I end up knitting with the prickles still in place.