Well, I don't now what this is used for, :D
Note: Minify the command to avoid issues :)
I present to you, Potion of Levitation!!
Boss Battles! Now not impossible!
Cup of coffee
Rideable Nyan Cat
go 1000mph with a walking stick
TnT
Get cool minecraft banners in ONE COMMAND NO MODS!
Herobrine's Flesh