put this in a command block and you get Dreams head!!!
Note: Minify the command to avoid issues :)
Super unlucky splash potion (LIKE REEEEEEALLY UNLUCKY)
INSANE Dragon Helmet
HERO POTION (May Cause Nausea)
Enchanted Golden Apple Potion (all the effects +more)
go 1000mph with a walking stick
TnT
Get cool minecraft banners in ONE COMMAND NO MODS!
Herobrine's Flesh