I have been falling in love with this Topshop crayon like there's no tomorrow. I purchased it quite a while ago but have only started using it over the last few weeks. This one is in the shade 'Mystical' and is beautiful metallic brown colour. It comes out quite dark so depending on what you like, may be best to limit it to evening wear. It's a twisty crayon so saves all the hassle of needing to sharpen it.
So far I've only worn it by itself with some silver liner in the inner corners of my eye and it looked lovely, but I think it would also look nice as a base with either darker shades or bronzy/golden shadow worn over the top.
(Note: for some reason the swatch looks much more silvery than the actual product. The crayon is most definitely a browny colour)