Egg mount for Easter.
Broom mount for Halloween.
Let's talk Christmas:

My suggestions:
1: A glowing-nosed antelope. (Pet command: shoots a laser from the nose.)
2: A flying wreath. (You would ride in the hole in the middle.)
3: A sleigh. (Pet command: Toss wrapped packages out the sides.)
4: A floating snowman head. (Ride atop the carrot nose.)
5: A Dream Hat. (Floats upside down with you standing inside.)