Mark Steyn has the original Johnny Mercer lyrics to "Glow Worm" (a song that made it on to his latest Christmas CD) along with several variations. Here's my environmentally correct version:
Glow, little Glow Worm, but here's a hint:
You must reduce your carbon footprint.
Don't want to see you scowl and glower
When you resort to solar power.
Alternatively, there are windmills.
Don't power squat but prevent oil spills.
You'll spend a ton, there is no doubt,
Before your glow goes out.