I also had a Christmas themed wedding (but not at WDW )
I had the bridesmaids carry kissing balls with roses in them.
I put poinsettias in the church and reception hall (you can get HUGE ones) as well as decorated Christmas trees. (I bought everything on clearance the year before) After the reception, I gave away the poinsettias as gifts to friends and family who helped make the day go smoothly.
For centerpieces, each table had a small poinsettia, three votives with Christmas scented candles, and holiday colored Hershey's nuggets (candy keeps people happy while they wait for the bride and groom

)
We gave away homemade hot chocolate in mason jars as wedding favors.
Before the wedding and during dinner, the DJ played Christmas music.
Instead of a gift table, people left gifts under a decorated tree.
The florist put a small string of christmas lights in my bouquet (it was an evening wedding)
My wedding colors were burgandy and gold.
I wore a cape to the wedding and reception (it's cold in Maine in late November
My wedding (in Maine) for 200 people cost about $12,000.
Happy Planning
Christy