Dear Rarity,
This year, I learned about generosity. Your generosity.
Thank you for everything you've given me this year, especially the beautiful dresses! I can't describe how happy I am to be your friend, and how happy I am to have met you. You are, not to mention, one of the beautiful ponies I've met.
I am incredibly grateful of your charity and friendship. I'm also sorry for any trouble I've caused you, and I ask your forgiveness. You've given me so much to look forward to this year, so thank you, Rarity.
I love you, and I wish you the best of luck in your boutique. It's already making wonderful progress!
Happy New Year.
Your friend,
Twilight
P.S. Send my regards to Sweetie Belle, too. And I wish her the best of luck in her crusade for her cutie mark.
P.P.S. Maybe I'll try making you a dress this year!