I've never done this for this community, but I think it needs doing by now. People are supposed to post at least one thing every three months, and it hasn't been happening. Therefore, I've made a clever -- but not infallible -- spreadsheet, and am now keeping track.
__aeolian - YuRiPa and the Crimson Squad
butterflys_fics - YuRiPa
carbonatedh2o - Auron
comeback - Wakka/Lulu
cygna_hime - Wakka, Lulu and Chappu
lunarwolf2002 - Bickson, Maroda & Elma/Lucil
neptune_sigil - Auron/Seymour
ourdailymask - Auron and Tidus*
threefold_law - Baralai
*A fic for this claim is, in fact, due by the day of the next mod post, so I counted it for this list.
If you don't post a fic or fanart, or comment to let me know you want to continue the claim by the next mod post (October 1st), I'll delete your claim. If you do want to continue but won't have time to post, I'll arrange a new "post by" date for you. If you'd just prefer to drop your claim, that's also fine.