Minecraft Hacks Allowed Servers
Hacks Allowed Minecraft Servers
These are servers that allow hacks. Be warned though, this means that other users with hacked clients can do the same thing, it may lead to unfair advantages for some people. If you enjoy that type of game play though, these servers are very nice to play on.
Can't find a server that you like? Maybe it's time for you to create your own so you can make it exactly how you like.
If that sounds interesting, visit Gameserverkings. They can host it for you and help you set it up.