Christmas Song Inspired Magic Anons!Holly Jolly Christmas: Your character is stuck laughing uncontrollably, no matter the situation, for the next three hours.
Grandma Got Run Over By a Reindeer: You character has amnesia for 24 hours.
Silent Night: Your character is mute for six hours.
All I Want for Christmas is You: Your character is obsessively love with another character (anon specifies) for two days.
You're a Mean One, Mister Grinch: Your character is hateful and bitchy for twelve hours.
Feliz Navidad: Your character can only speak in Spanish for three hours. (If necessary, use a translator.)
Angels We Have Heard on High: Your character sprouts angel wings and has them for the next twelve hours.
Chestnuts Roasting on an Open Fire: Your character is a glutton for six hours.
Feel free to add more!