It seems ages since I finished anything, let alone something so pleasing. Thanks to Guzzisue and Allabitrandom for the suggestions - Ravelry did indeed have lots of patterns for a sample quantity of yarn. I've adapted this a bit (decreased it to a point and made the tassel).
OK, it's not very neat at all, and I have something to learn about blocking. It looked much better before I did that. More lustrous and plump. I think when I squeezed out the water, it stayed squeezed. But then again I suppose it would get flattened between the pages of the book / magazine.
BUT I love the colour (thanks to L'Oreal), I love working with pure silk (first time) and it's a great pattern, effective but easy and quick to knit.
It was all a bit 'on a whim'.I'm going to do it again and take much more care.