Then I found these:
I'm such a sucker for square glitter and these two CanMake Jewel Glitter Nail polishes have fine glitter and small and medium square glitter! 690 yen (about $9).
Homei is the only brand that I have found in my area that has really interesting glitters. From the left: the purple has fine purple glitter, iridescent and blue-iridescent hex glitter and purple star glitter in a clear base; the red is fine silver glitter chock full of pink and red medium hex glitter in a clear base; the center polish has iridescent fine glitter, iridescent hex glitter and pink and purple star glitters in a clear base; the silver-y one second from the right has super-fine silver glitter with multi-colored heart glitter in a clear base; and the polish on the right has large red and blue hearts in a clear base. 495 yen (roughly $7)
Found at the 100 Yen Plaza (Daiso): WinWax New York Light Color Nail Enamel on the right and left--both contain multi-chrome blue-to-pink-to-gold sparkle and WinWax New York Nail Sparks in a deep teal-green. Each was 105 yen, which is roughly $1.30.
This is what I'm wearing right now: Deborah Lippmann IKWBL w/ the purple WinWax shimmer and the Homei iridescent w/ pink and purple star glitters as accent. If you click to enlarge, you'll be able to see the duochrome in the shimmer.
Thanks for Reading!