I've never had a favorite shape of glitter. Until now! I've suddenly realized that I love square glitters. When I'm wearing nail polishes with different shapes, the squares are my favorite. Lol. I like stars but they are usually a huge pain in the butt to apply so I don't like them as glitter.
I'm not sure how many polishes I have that have squares, I can only think of two. Rainbow Honey's Woland and Sally Hansen's Open Mica Night.
But I do know that I'll be looking to buy more in the future.