Light comes from many sources: the sun, fluorescent bulbs, and the eyes of a child who has just swallowed a sparkler. Get enlightened with today's Groupon: for $25, you get a 10-pack of white Chinese sky lanterns from Big Fireworks (a $50 value).

Big Fireworks’ array of sky lanterns are handmade and imported from China, where traditional lanterns have lifted off for centuries and are considered good luck. Packs of 10 pristine, white lanterns, each about the size of a large beach ball or a 1/100,00-scale model of Jupiter, float peacefully into the sky, propelled by hot air wafting from a small wax candle within. After about 15 minutes of flight, flames self-extinguish, and the fire-resistant lantern body gently falls and begins to completely biodegrade. Launching Chinese sky lanterns can lend extra pomp and symbolism to events such as memorial services, weddings, and driver’s ed. reunions.