Wordsmith's anagram tool creates anagrams out of any word you input. For example, anagrams for geeksugar include: A Geek's Rug, A Keg Surge, and Argue Kegs.
The site, which is part of wordsmith.org, is even more fun with real names. For instance, "Ashley Olsen" turns out to be "A Hell Yes Son" and "Lays Heels On." Which is killer in a sentence like "A hell yes son, Ashley Olsen sure lays heels on that ground!" OK, so maybe not, but it's an awesome website.