I know that there are plenty of swatches around of the Sally Hansen Lustre Shine polishes, but if don't swatch them too, it's harder for me to justify having bought all six of the colors that have been released so far. Besides, more swatches out in the world can't be a bad thing. Left to right below: Moonstone, Scarab, Lava, Plume, Firefly, Copperhead.
Moonstone is a white that glows pink at some angles. I used three coats, and there's still a hint of visible nail line, but that doesn't bother me in this case since the tint of the polish somehow is neutralizing the yellow in my nails so they look clean and pretty.
Scarab is a peacock blue with a very subtle shift to teal. This was a two-coater.
Lava has a strong rose red to orange shift. Unlike the traditional frosty shimmer finish of the first two we've seen today, this is more of a flecked/foil shimmer. I used three coats.
Plume has an olive green to gold shift. We're back to a traditional shimmer finish here and back to two coats.
Firefly is a bronze frosty shimmer that shifts to a golden green. This also is two coats.
Finally, Copperhead is a deep copper with a subtle shift to deep plum. Like most of the others, it took two coats.
I did take these all out in the sunshine, which seemed to make them all more sparkly but didn't really make the duochrome shifts any more evident. There were some nice surprises in the sparkles: Moonstone has pops of blue and green, Lava pops of pink, and Firefly pops of purple.
I did not try swatching them over black or other base colors because I'm suffering from a bit of duochrome fatigue right now. (It's quite serious; I saw China Glaze Bohemian on sale and felt no desire to buy any more of them to join the one I already own.) It may be that fatigue talking when I say I'm not that impressed by the Lustre Shine overall. Lava is worth buying, I think, especially if you didn't get things like MAC Bad Fairy or Claire's Poison Apple when they were available. If the other polishes in this line had that same sort of finish and strength of duochrome, I'd be more excited. I'd also be more excited if these were priced a touch lower; I've seen them marked anywhere from $5.99 to $8.29, and they're in .33 fl. oz./10 ml bottles, so two-thirds full size for a full size price. I will most likely get the other two Lustre Shine colors when they finally show up, but I will wait for a sale for sure.
UPDATE 2012-Nov-27: I found and swatched the other two colors; see this post.