Hi! Today I'll show you 3 cool commands. You might know about some of them, as they are pretty simple commands. Enjoy!

Command 1:
/summon Summon Sheep ~ ~ ~ {CustomName:"jeb_"}
(Works only in 1.7 or above) Have you ever wanted a sheep that can turn 16 different colors in minecraft? Well, here you go! And incase you're wondering, you can do this with a nametag, too. If you kill the sheep spawned by this command, it will drop white wool. If you kill a sheep named jeb_ it will drop the color wool it originally was.

Command 2:
/summon Villager ~ ~ ~ {Profession:5}
(Works only in 1.7) ANOTHER villager?! Yes, this is a command that will spawn a secret villager, and he wears a green suit. Although his code is in the game, he will never spawn randomly in NPC villages. This villager was supposed to be the regular villager, as he always trades the same thing, 8 gold for one emerald.

Command 3:
/give <your username> 397 1 3 {SkullOwner:"<any username>"}
(Works only in 1.7) This is a very cool command. You can get anyone's head this way. Also, if you want to get a mob's head just do this: /give <your username> 397 1 3 {SkullOwner:"MHF_<any mob>"} Just so you know though, some mobs have wierd names. For example: A magma cube would be MHF_LavaSlime.

Thanks!