Its actually a vanity bitcoin address, normal addresses are random characters but if you keep generating private/public key pairs,  one of them may begin with the format that you like such as 1dice used by SatoshiDice addresses. You can use VanityAddress Generator at https://bitcointalk.org/index.php?topic=25804.0


Well on my aging cpu only it took about 10 hours for the 1Teddy,  it all depends on luck and pattern length though