Here's another device I pieked up from Bill Ross. I don't even know what the style is called, I've seen everything from "easy listening" to "post-war-style". If anyone knows please let me know:)
The style also reminds me of the music from "It's Always Sunny In Philadelphia". If you're not easily offended do yourself a favor and check that show out.
Here's some of the things I found interesting:
1) How to get that bouncy syncopated feel in the accompaniment.
2) How much the the harmonization by 3rds in the flutes helps getting this "dated" sound.
3) The pizzicato fills in the violins.
4) How the background line helps keep the interest up over the simple 2 chord vamp.
Here's the sketch: