I'm expanding my horizons and trying a jelly sandwich today...
...well, not exactly.
A jelly sandwich is technique where you apply a layer of a translucent jelly polish, then a chunky glitter polish, and top that with another layer of jelly polish. I have a tutorial on this technique (you can find it in the Tutorials tab--it's the very first one in that category!) if you want a more in-depth description.
I used Sally Hansen Complete Salon Manicure Greenlight (which, by the way, doesn't seem to exist. Literally, I can't find any swatches of it online.) Greenlight is a squishy green-toned teal jelly, and when I bought it I actually thought it was a creme. To my surprise, it was a jelly! Hurray!
The glitter I used is Maybelline Clearly Spotted, a really versatile topper of black and white matte hex glitters.