You’re welcome! I’m not sure if you were also interested in the hats, but the ones from the regular edition were made by a brand called House of Flora.
Kuriyama Chiaki wore the same one to promote her single “Kanousei Girl” that year (released November 17th, 2010):
I looked all over to see who made the limited edition hats, but I couldn’t find anything. :( Anyway, good luck on your project!
Marimekko (regular) and Eley Kishimoto (limited):
I have been trying for 2 hours looking up those adorable shirts from Perfume’s Nee promotions; the ones where A-chan, Nocchi, and Kashiyuka are head to toe in pinks, oranges, and navy blue in the CD Only Edition cover, and also the one with army-military medals embedded all over a funky blocky pattern of green and pink, with a piano looking hemline in the Limited Edition cover. Does anybody know the name of both designers of what they were wearing on BOTH covers? It’s for a fashion project, and I want information to back it up~