Change your mob's looks with Randomobs

I don't think I have ever seen a mod like this. Randomobs is a mod, now available for Minecraft 1.0, that alters the appearance of mobs in the game. Every time a mob spawns, a random skin texture is loaded. It does not change the behavior of the creature, but rather makes boring mobs cool. Custom texture packs can also change the look of mobs. There are several textures for every mob in the game:

9 different wolves, 8 different cows, 8 different pigs, 9 different sheep, 7 different chickens, 8 different squids, 9 different spiders, 7 different zombies, 8 different skeletons, 11 different creepers, 7 different slimes, 8 different pigzombies, 7 different ghasts, 7 different endermen, 4 different silverfish, 5 different cavespiders, 3 different magma cubes, 5 different mooshrooms, 4 different blazes, 4 different snowmen, 10 different villagers

You can get the mod at the source link below. You must have Minecraft 1.0 to install it.

Via: Minecraft Mine
Source: Minecraft Forum