Hankering for more purple liners I bought Urban Decay 24/7 Liner in Lust the other week. I have been impressed with the staying power of these liners owning a few that came in UD sets, but I haven't had any of the coloured ones. Just brown and black ones.
Having used this a few times now, I think I can comment on it. They are smudgy and soft but have great staying power.
Lust is a deep indigo colour with significant silver shimmer. You can buy these liners for £11.50 from various retails stores on the UK.