Free item grants, latest at bottom:
http://www.gaiaonline.com/grant?key=superamazingitem
http://www.gaiaonline.com/grant?key=myeyeshurt_sparkles
http://www.gaiaonline.com/event/grant/?action=894hu4905jiojgrt90re8t094jijgj09e5t4ijigreopvf
http://www.gaiaonline.com/frame/freestyle
http://www.gaiaonline.com/facebookfangrant?key=facebookfangrant&_gaia_t_=3526
http://www.gaiaonline.com/event/grant/?action=d897344nndfiudy98y45nkdfyda78y43h5bjhudsfhsda9
http://www.gaiaonline.com/con2011
http://www.gaiaonline.com/forum/real-life-fashion-style/macy-s-mstylelab-vote-in-the-poll/t.66493107/
http://www.gaiaonline.com/friends/npc/add/7021215
http://www.gaiaonline.com/launch/theater?&room=374993&res=&movie=69697113
http://www.gaiaonline.com/grant?key=cokebelt
http://www.gaiaonline.com/grant?key=doublecompleterainbow
http://www.gaiaonline.com/otaku/
http://www.gaiaonline.com/grant?key=paulforever
http://www.gaiaonline.com/grant/?key=xmas2010santabag
http://www.gaiaonline.com/profiles/gaia-fanta/30116481/
http://www.gaiaonline.com/launch/hollywood/ (you have to talk to the npcs)
http://www.gaiaonline.com/profiles/gaia-playtex-sport/28675721/
http://www.gaiaonline.com/grant?key=williamyunopickme
http://www.gaiaonline.com/launch/fanta (talk to npc)
http://www.gaiaonline.com/profiles/gaia-sims-3-generations/30837459/
http://www.gaiaonline.com/launch/theater?&room=420291&res=&movie=69697137
http://www.gaiaonline.com/launch/theater?&room=421011&res=&movie=69697139
http://www.gaiaonline.com/profiles/gaia-mstylelab/28558157/
http://www.gaiaonline.com/grant?key=timeforajumperparty
http://www.gaiaonline.com/spon/muppets
http://www.gaiaonline.com/forum/gaming-discussion/what-makes-you-a-classic-or-modern-sonic/t.75440137/
http://www.gaiaonline.com/spon/coke -charm
http://www.gaiaonline.com/launch/coke -rest of the coke items in here
http://www.gaiaonline.com/grant?key=hueyichooseyo
http://www.gaiaonline.com/spon/sonic
I can't include the grants of all the ornaments on the staff pages, but here's a list of the staff that have the ornaments, be sure to thank the creator of the list in their thread, it must have been time consuming:
http://www.gaiaonline.com/forum/gaia-community-discussion/staff-ornaments-complete-list-decoder-finished/t.76659791/
http://www.gaiaonline.com/grant?key=twocupsofcoffee
http://www.gaiaonline.com/grant/?key=djhelsingprofilegrant
http://www.gaiaonline.com/grant/?key=leapyear
http://www.gaiaonline.com/grant/?key=turkeydeluxe
http://www.gaiaonline.com/grant?key=fridayxiiiluckyday
http://www.gaiaonline.com/grant?key=alchemystarterkit
http://www.gaiaonline.com/event/grant/?action=98fc4cb43b82d5e0d70a0d25c9dccb64689kcni8589
http://www.gaiaonline.com/profiles/gaia-andi/16382725/ (view trailer in it's entirety, then talk to the npc for 500 gg)
http://www.gaiaonline.com/grant?key=py_rate_day
http://www.gaiaonline.com/grant?key=agrantformybros
http://www.gaiaonline.com/grant?key=perfectbody
http://www.gaiaonline.com/grant?key=5000milliliters
http://www.gaiaonline.com/grant?key=presidentdiedrichsrecoveryplan
http://www.gaiaonline.com/grant?key=iheartapiculture
No event items included, as they usually require event participation. Some of the first ones may not work. Sponsorships come and go, but this is still a great list as it includes grants that had no announcements.