So I was looking back at my entries, and I realized I never posted the comparison for Milani Gems and Deborah Lippmann's Happy Birthday that I promised to. Since that first post I have gotten my hands on 3 potential dupes for Happy Birthday: Milani Gems, Ulta Pinata-Yada-Yada, and Wet N Wild Party of 5 Glitters.
I know that Gems has added large pink hex glitter since I bought my bottle, so it's now even closer to HB then this photo shows. Pinata-Yada-Yada is the closest color match to some of the colors of HB. Party of 5 Glitters is not even close, but it's the cheapest at $1.99 a bottle, so if your care more about price then true duplicability, it's a definite contender. All of these "dupes" have hex smaller glitter, while HB has square, also HB's small blue glitter is a bright royal blue, while the others are more of a cyan color. Of them all I prefer HB, but Gems and Pinata-Yada-Yada are tied for me as the best dupe (both are available for about 5 dollars).
Until next time!