Findings:

• Comet Hale-Bopp
• Comet Stone
• Comet in Moominland
• Comet Empire
• On the comet there will be much pie
• Encke's Comet
• Donati's Comet
• Late at night on Ganymede, we whispered gruesome legends of the Comet Police
• I wanna see it when you find out what comets, stars and moons are all about
• Houston Comets
• De Havilland Comet
• Electric Comets
• Comet Swift-Tuttle
• Buy one comet, get the second one FREE!
• Comet (user)
• Comet Kahoutek
• Comet: summer, 2061
• Comet ISON
• Off on a Comet
• you are a comet when you streak close by the radios get weak
• Baileys Comet 2
• Vomit Comet
• long-period comet
• The Comet Club
• Baileys Comet
• comet
• Halley's Comet
• Comet Cursor
• short-period comet
• Biela's Comet
• Hyakutake comet
• The Shadow of the Comet
• Night of the Comet
• Bill Haley and His Comets

If you Log in you could create a "Hale-Bopp comet" node. If you don't already have an account, you can register here.