Nicole By OPI- A Million Sparkles and Nabi- Purple II

A million Sparkles is a glitter polish that is part of the Nicole by OPI core collection. I do not believe it is a seasonal polish. The polish retails for $7.50 USD each, and is available at most drugstores, Ulta, and even Marshall's/T.J. Maxx/Ross! It is a mixture of red, yellow and blue glitters of various sizes and densities in a clear base, so definitely lay down a coat of a similar color before proceeding with glitter. Mine is "Plenty of Fish in the Sea" by Wet n' Wild.
Overall, I really like the versatility of this polish. Because it is mostly blue with gold and a bit of red, it looks cool with a lot of different colors underneath. Wear was pretty long, but since I messed up my ring finger on day 1, I did an accent nail the next day I wore it.
Nabi has approximately 30-something shades of magnetic polishes, which when they were released retailed for about $USD, but now are about $2 USD. The nice thing about them is the variety of different magnets they come with, so you do not have to use the one on the cap, which is often frustrating. I used the one on the cap for reviewing purposes here and because I only did one nail. Purple II comes with a concentric circle magnet.
Once you get over the weird color, the polish is pretty great. It dries fast, wears for a long time, and the magnet is easy to use. However, I just don't think it is the prettiest color out there. It's one of those shades of purple that kind of borders on dark brown. However, I recommend giving the whole Nabi selection of cheap magnetic polishes a try, and get them while you still can!

OPI- Bond, James Bond

I know Magnetic polish is a little bit too.. fall 2012, but for those who might be still interested in the genre, I will go ahead and tell you about this one.
The polish is a dull bronze color in the bottle, but using the magnet creates a golden color in the design on the nail. This polish was part of the James Bond/ Bond Girls collection OPI periodically releases to celebrate new Bond films, this one being from the release of Skyfall. The polish was rather expensive, $17.95 USD, but only to be expected because magnetic polish is about 30% more expensive than its ordinary counterparts of the same brands.
This is one of only two magnetic polishes I own, and this is the one I prefer, probably because OPI is a much more high quality brand than Nabi. The texture is similar to all the other shimmery OPI polishes I own, does not chip easily, and is really easy to brush on with the included pro-wide brush. The included magnet makes a lattice or fishnet type design.
As with any magnetic polish, the formula is a bit thick because of the metal particulates and will therefore take a very long time to dry.

To apply any magnetic polish:
1. Apply a base coat and a very thin coat of the color.
2. Apply another coat of the color to make it opaque.
3. Apply a third, very thick coat of the polish.
4. While the third coat is still wet, hold the magnet just a few millimeters from your nail.
5. Wait just a second and carefully move the magnet away from the nail.
6. let dry for about 15 minutes, then apply topcoat.
7. The whole thing should be dry enough to touch things without messing them up in the next 45 or so minutes.

Again, I'm fully aware that complex nail art, glitters and duochromes are the thing right now, but these are phasing out and going on sale at most retailers, so if you want to try it without spending as much as you would have a year ago, now is the time.