Answers:
1: H Y A M L C
Have Yourself a Merry Little Christmas
2: T F N T A D S
The First Noel, The Angels Did Sing
3: G R Y M G L N Y D
God Rest Ye Merry Gentlemen, Let Nothing Ye Dismay
4: I C U A M C
It Came Upon A Midnight Clear
5: S N H N A I C A I B
Silent Night, Holy Night, All is Calm, All is Bright
6: O T F D O C M T L G T M
On The First Day of Christmas, My True Love Gave to Me...
7: D T H W B O H F L L L L L L L L
Deck The Halls with Bows of Holly, Fa La La La La La La La La
8: Y B W O Y B N C
You Better Watch Out, You Better Not Pout
9: J T T W T L I C
Joy To The World, The Lord Is Come
10: Y K D A D A P A V C A C A D A B
You Know Dasher And Dancer and Comet & Cupid, Donder & Blitzen
11: I S M K S C U T M L N
I Saw Mommy Kissing Santa Claus Underneath the Mistletoe Last Night
12: C S B S D I H S
City Sidewalks, Busy Sidewalks, Dressed in Holiday Style
13: H T H A S G T T N K Hark!
The Herald Angels Sing, Glory to the Newborn King
14: G G R O B A R
Grandma Got Ran Over By a Reindeer
15: O H N T S A B S
O Holy Night, The Stars are Shining Brigtly
16: A I W F C I M T F T
All I Want for Christmas is my Two Front Teeth
17: D T T S I A O H O S
Dashing Through The Snow In a One Horse Open Sleigh
18: W T K O O A
We Three Kings Of Orient Are
19: I D O A W C J L T O I U T K
I'm Dreaming Of A White Christmas, Just Like The Ones I Used To Know
20: C R O A O F J F N A Y N
Chesnuts Roasting On An Open Fire, Jack Frost Nipping At Your Nose
21: I B T L A L L C
It's Beginning to Look A Lot Like Christmas
22: O L T O B H S W S T L
Oh Little Town of Bethlehem, How Still We See Thee Lie
23: S B R A Y L I T L S I G
Sleigh Bells Ring, Are You Listening, In The Lane, Snow Is Glistening
24: I B H F C
I'll Be Home For Christmas
25: W W Y A M C W W Y A M C
We Wish You a Merry Christmas, We wish you a Merry Christmas
26: I H T B O C D
I Heard The Bells On Christmas Day
27: F T S W A J H S
Frosty The Snowman Was A Happy, Jolly Soul
28: J O S N L Y E T W
Jolly Old Saint Nicholas, Lean Your Ear This Way
29: G K W L D O T F O S
Good King Wenceslas Looked Out on the Feast of Stephen
30: U O T H R P O J G O S C
Up On the Housetops, Reindeer Pause, Out Jumps Good Ol' Santa Claus
31: J B J B J B R
Jingle Bell, Jingle Bell, Jingle Bell Rock
32: I H A B C W Y
I'll Have A Blue Christmas Without You
33: W U N W T A G C
Little Saint Nick (Way up North where the air gets cold)
34: J H T S B R T T T T
Just Hear Those Sleigh Bells Ringling, Ting Ting Tingling Too
35: C T T M P R P P
Come They Told Me Pa Rum Pa Pum Pum