I have the original Novel (Original cover too,) all 15 volumes of the Manga (No #7 duplicate too,) all 5 of the Ultimate editions, Special Edition DvD, Blu-Ray, 2 posters (Class photo promo poster and profile of the characters,) Logo Keyring, 2 Logo badges, 6 character badges (3 Shuya & Noriko, Fumiyo, Mitsuko and Kazuo) Parents Day comic and my sister has the Tinned DvD box set with original film reel (4-5 clips of Takako's death.)
And hopefully, I'll be getting the Limited edition Blu-Ray soon (So I'll be scanning the photo booklet.)