I didn't want to use these up too fast, so for swatching purposes I did skittles. I don't remember which bottle was which, but I did write down the colors when I put them on my nails (over Wet 'n' Wild Black Creme); top to bottom it's Red to Green, Gold to Green, Blue to Green, and Red to Green again.
Look what happens when I tilt my hand just a bit—do you see the green peeking out from the orange-red on my index finger? The hints of gold showing up in the green on my middle? The rich blue on my ring finger?
Outside in the winter sun, the sparkles in these flare up like whoa!
Here I managed to capture the green side and the orange-red side of the polish at the same time (top and bottom nails below):
Then I went back inside and aimed the flash at my fingers and that got the gold in the green/gold to pop out (middle finger below):
I spent the rest of the time I wore these wandering around my house and wiggling my fingers around; here they are in the sun coming through my bedroom window.
These are great fun, and I'm curious to try to them over other colors. As always, it's a matter of finding the time. Too bad swatching isn't a real job that someone will pay me to do.
UPDATE 05-June-2012: These are now being sold on my friend's Etsy shop, Lilacquer Polishes. Look for Lycanthrope, Kitsune, and Selkie; they may be out of stock temporarily but so far they've always come back in.