What to write in a kid's Christmas card

Santa called me and he told me that he needs to hire more a little elves to help him with all the presents that he bought for you and your family this year! Merry Christmas!
Jingle bells, jingle bells, jingle all the way! Merry Christmas to the most deserving little Santa's helper I know!
May Baby Jesus bless your little heart and bring you and your family peace and joy in this most wonderful time of the year!
Cookies and milk; lights on the Christmas tree; presents to unwrap; stockings full of sweets! These are only a few of the many reasons why a child like you loves Christmas so much! Have a very happy and joyful Christmas!
Christmas is the most magical time of the year for a child. It's when you get to open up all the gifts Santa brought you and when you get to eat way too many sweets! Merry Christmas!
Merry Christmas! Don't forget to go to bed nice and early so that Santa can come and place all the presents for you and your family under the tree!
Hey there little helper! I've heard from Santa and he told me that you've been a very good kid this year! So here's hoping that you receive lots of presents! Merry Christmas!
Santa told me that he received your letter and loved reading it! He also told me that he'll be bringing you all the gifts you asked for because you've not been naughty at all this year! Surely that's only partially true :) Merry Christmas!
When you wish upon a star all your dreams can come true! I hope you wished to receive lots and lots of presents this year! Merry Christmas!
It's only fair that as a child all you wish to do today is open up the presents Santa brought you and play with them all day long. However, don't forget to celebrate the birth of Jesus Christ as well! Merry Christmas!
Santa told me that he loved the cookies and milk that you left for him last year. He asked me to see if you'd like to be such a kind little host again this year. I'm sure that there could be an extra prezzie [ present ] in it for you :) Merry Christmas!
I know that you can't wait to open up the presents Santa brought you, but don't forget to take a moment and dedicate a prayer to Baby Jesus. Have a blessed and very Merry Christmas!
I know your name is on Santa's 'good kids' list. That's why he brought you so many presents! Let's go sit under the Christmas tree and open them! Merry Christmas!
Merry Christmas! Don't forget to be a good little helper and put out the cookies and milk for Santa Claus tonight! I know he'll be coming soon to visit!
I don't know about you, but I think Santa is the most awesome person in the world! He has reindeers that can fly and gets to give good children like you a lot of presents! Merry Christmas!
Merry Christmas to the most deserving child I know! You are a joy to have around and I'm blessed to have you in my life! Merry Christmas!
Santa received your letter and he told me that you've been a very good little elf this year! So, expect to find lots of gifts under the tree! Merry Christmas!
Santa told me that you've been such a good kid that he'll make sure to bring you lots of special gifts this year! Oh yeah, and a small piece of coal for that one time you were naughty :) Merry Christmas!
Let's see, you always did your homework; you remembered your manners; you never disrespected your mother and father. Wow, you've been a wonderful child this year! Let's go see how many presents Santa brought you! Merry Christmas!
On this very special day don't forget to give all your loved ones massive big hugs and spread joy and happiness with your smile! After all, you're Santa's little helper! Merry Christmas!