Two of my favorites:

"I Wish It Could Be Christmas Every Day" by Roy Wood's Wizzard
"It's About That Time" by The Idea
       You'll probably need to track down a Roy Wood best-of for the former, 
but "It's About That Time" appears on both the classic Yuletunes compilation 
and the more recent Ho Ho Ho Spice, an essential 2-CD set to benefit hospice 
care (www.hohohospice.com).

CC!  
THIS IS ROCK 'N' ROLL RADIO
Sunday nights from 9 to midnight Eastern USA time (with repeats all day 
Wednesday), on the web at wxxe.org Syracuse Community Radio