The Polar Express by Chris Van Allsburg is a wonderful Christmas book. We don't own it, sadly. Hopefully that will change in the future. We do own the movie and so I decided we should do some fun things to go along with the story line. On Storyline.net we found Lou Diamond Phillips reading the story so that is how we "read" the book today.
Their is a polar express website with lots of fun games and activities including this one below that has your child draw pictures of things that might be in Santa's sack.this site.
Polar Express ticket that they could use to get on our train. Then we rode around the kitchen before heading to the living room where I had hot cocoa and cookies waiting for them. They snacked on those while we watched the movie.
There are tons of great ideas out there that I came across. It'd be fun to have a Polar Express party with pajamas and the whole bit.
Here are some links to sites that have a collection of great ideas: