command:/give @p name minecraft:skull 1 3 {SkullOwner:name}
example: /give @p minecraft:skull 1 3 {SkullOwner:herobrine} or /give @p minecraft:skull 1 3 {SkullOwner:noobkiler} (my name on game)
⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓
=======================================================================================================
important:
⇒ only in 1.7+ can get the customized heads! ⇐
========================================================================================================
⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑⇑


Another names to use 
Mobs:

• MHF_Blaze
  
  
• MHF_CaveSpider
  
  
• MHF_Chicken
  
  
• MHF_Cow
  
  
• MHF_Enderman
  
  
• MHF_Ghast
  
  
• MHF_Golem
  
  
• MHF_Herobrine
  
  
• MHF_LavaSlime
  
  
• MHF_MushroomCow
  
  
• MHF_Ocelot
  
  
• MHF_Pig
  
  
• MHF_PigZombie
  
  
• MHF_Sheep
  
  
• MHF_Slime
  
  
• MHF_Spider
  
  
• MHF_Squid
  
  
• MHF_Villager
  
  

Blocks:

• MHF_Cactus
  
  
• MHF_Chest
  
  
• MHF_Melon
  
  
• MHF_OakLog
  
  
• MHF_Pumpkin
  
  
• MHF_TNT
  
  
• RedPegasus (Note block)
  
  
• EBOS23 (Lava)
  
  
• Scemm (Dispenser)
  
  
• BoomerMan98 (Bricks)
  
  
• Sugar_Cane_ (Sugar Cane)
  
  

Others:

• MHF_ArrowUp
  
  
• MHF_ArrowDown
  
  
• MHF_ArrowLeft
  
  
• MHF_ArrowRight
  
  
• MHF_Exclamation
  
  
• MHF_Question
  

Or you name or friends