I have just finished me simple Challenge Box! In MCEdit, load the schematic and place it in your SP world or MP server. It's a bedrock box covered with 8 buttons, each giving the player a disability / disadvantage.

Buttons:
- Infinite Night and Difficulty Hard
- Derp
- Lucky 7
- Infinite Blindness
- Infinite Drunkness
- Adventure Mode
- Sonic The Hedgehog
- Everything is Obsidian

Additional Notes

I will soon be making an Advantage Box.