I thought I’d post some examples and a few more ideas.
Here are a couple tracks composed by John Powell for the movie How to Train Your Dragon. (I think the music is way better than the movie.) You can listen to samples on iTunes:
I have a few other fun ways I like to introduce kids to classical music (besides just playing it in the background as has been suggested.)
P. D. Q. Bach, New Horizons In Musica Appreciation — This is a fun recording of Beethoven’s Fifth Symphony presented as a sporting event with commentators throughout. Boys especially seem to like this one. (You don’t have to tell the kids they’re learning music terminology along the way.) You can listen to the normal Fifth Symphony later for comparison.
Mussorgsky’s Pictures at an Exhibition is a nice introduction to classical music. Before listening it’s good to know each movement is a musical interpretation of a painting. A common theme ties it together and a couple promenade movements depict walking between the exhibitions. I wouldn’t go too far in forcing the details, but it’s nice to know the titles while you listen because it gives the mind something extra to form a relationship with the music.
The Toy Symphony is fun because it has parts for toys along with the instruments. It’s fun to listen for the various noisemakers.
One movement in Haydn’s Surprise Symphony has a sudden loud orchestra chord in the midst of an otherwise quiet section. Kids love the story behind it because Haydn was quoted to have said he put it in because “this will make the ladies jump!” Haydn had a sense of humor and employed a number of “jokes” in his works.