Biome Wand Mod 1.7.10, 1.6.4 adds a slightly expensive wand that allows you to change the biome in a small area, but with only a few uses. First, right click a biome to sample it, and then right click in another area to change the biome to what you sampled. You must resample a biome after that.
How to install Biome Wand Mod 1.7.10, 1.6.4
Download Links for Biome Wand Mod 1.7.10, 1.6.4
For Minecraft 1.6.4
For Minecraft 1.7.2
For Minecraft 1.7.10