My suggestion for Minecraft...
Endercorn!
People were having a discussion about sending people away to the End as a punishment in SMP (Since it's currently inescapable unless you die) it reminded me of the Twilight Zone episode "It's a Good Life" where the little boy wished away anyone that angered him to the Cornfield.
I was thinking, having corn as the only naturally growing plant in the End (As right now it's barren and boring). It would be like a reward for getting through the End alive, and corn would look wonderful on farms.
Homage to a classic episode of a classic series