FedeX23さんのイラストまとめ

Favorite OP: Mirai no Bokura wa Shitteru yo
Favorite ED: Yuuki wa Doko Ni? Kimi no Mune ni!
Favorite anime single: Butterfly / Solitude Rain / VIVID WORLD
Favorite album single: JIMO-AI Dash!
Favorite solo: Eutopia
Favorite subunit song: Deep Sea Cocoon
Best girl in each group: https://t.co/YiHuQP4j9H

Bonus round
-Diamond's costume has three stars and one moon for the clip
-Some scans have a more "casual" pin with just two stars
-The fabled single moon and star barrette on the World Tour scan
-Her training hairclip which is just a triangle and I find neat

The anime design has the moons be the same size and in a straight line, and the star is much bigger and on the middle. It fits the simpler anime designs and feels like a real barrette, but loses on a bit of the charm.

Thinking about Kasumin's signature hairpin
Most non-anime visuals (Magazines, SIFAS, 4koma etc) loosely depict it as two rounded moons, one larger than the other, with a small star somewhere on top of the bigger one