Clay: Although I know it's already been mentioned, Clay is thankful for food. And his friends. And food. Did I mention that he's thankful for food?
Tsunami: Thankful for someone to yell at, of course.
Glory: Thankful that all of this crazy stuff is hopefully over and that all the excitement is headed to the Lost Continent.
Starflight: Probably Fatespeaker, and also Sunny, but tries not to think about that anymore.
Sunny: Thankful for her friends, and that everything's back to normal (if you can call it that).
Moonwatcher: Thankful for her friends, and that she's not as supremely hated as she was before.
Winter: Thankful for his friends and totally Umber
Peril: Thankful that she hasn't set everybody on fire, and for CLAY OBVIOUSLY DUH and also Ruby even though she doesn't mention that much (or does she...?).
Turtle: Thankful for Kinkajou, and that all that uncertainty is behind us.
Qibli: Thankful for Moonwatcher, of course, and for new adventures that will totally require his expertise.
Kinkajou: THANKFUL FOR HAPPINESS AND RAINBOWS AND TURTLE AND TAMARIN AND ALL THAT FUN STUFF YEAH HYPER DRAGONS UNITE!
Onyx: Probably thankful that she's even alive, even though she very UNsecretly despises Smolder. Also extremely thankful for Tamarin.
Tamarin: Thankful and freaked out that three of her friends are crushing on her at once. Totally thankful for Onyx.
Margay: Thankful that no one has actually dragged him to any social events like they said they would this year. And thankful that so many humans are jerks in his opinion that he has a "logical" reason to sniff, stick his snout in the air, and insist that dragons are so much better than humans. And for Scattering, clearly.
Scattering: Thankful that Margay hasn't been threatened with legal action yet, and for CAKE! And for Margay, of course.
Auburn: THANKFUL FOR STARFALL AND SUNSET AND CLOVER BECAUSE WHAT WOULD LIFE BE WITHOUT THEM
Cottontail: Thankful that Auburn hasn't literally thrown herself at anybody yet, and for Gyrfalcon.
Gyrfalcon: Thankful that Auburn hasn't proven to be a totally annoying acquaintance yet, and for Cottontail.
Canal: Thankful for Malice and for her family, however odd they might be.
Malice: Thankful for shopping and malls and fast food and pizza and Canal!
Distance: Thankful for this super fantastic thing called life! And for Darkwatcher! And for the word "fantastic!"
Darkwatcher: Thankful that she hasn't heard the word "fantastic" repeatedly during her relationship with Distance, and for Distance, and for all the many, many ways she can be annoyed (because for some reason being annoyed is her idea of fun...?).