Ever wanted to give yourself a player head in Minecraft Singleplayer on 1.8? Now you can with this super easy fun and awesome command! 
All you need to do is enter this code and replace [your username] and [username]!

Code: /give [your username] minecraft:skull 1 3 {SkullOwner:"[username]"} 

Examples: 

/give RuxPlay minecraft:skull 1 3 {SkullOwner:"Herobrine"}

Running this command I will get a head of herobrine!