Working Sponges by Konitor
Have sponges which can soak up water or lava (or both). Have powered sponges. The mining sponge needs to be allowed in the config - it is disallowed by default.
World Changers by TuxCraft, tommy1019
Do you like adventuring in Minecraft? You will now. World Changers adds awesome huge structures to your game like volcanos or craters.
The World Handler GUI provides a smart GUI for people without having to know any complex commands and gives them a look inside the art of Minecraft map / world making. Now anyone can easily create maps or just save a few ammount of time and provides an easy to use interface.
World Init by SHsuperCM
This mod allows you to select a world/ip that will be loaded instantly upon game launch!