I liked the song Silver Bells. Mostly I was completely intoxicated by the fact that they /rang/. Noise! Pins that move and make sound! Gah!
My tastes now tend to run towards wreaths or snowflake-ish, for I am a cheap bastard and want my pins to last more than a month. You better work it, grrl!
FYI, "bridal" pins are a good alternative place for finding these.
I have a snowman pin that someone gave me somewhere so I suppose I am willing to keep and wear pins with limited time frames. ;)