Lucky Block In Vanilla Minecraft (no Mods!) -

: Fill the Dispenser with random items like Diamonds, Iron Swords, or even dangerous items like TNT or Spawn Eggs.

: Place a Dispenser (or a Dropper ) directly underneath the Observer. Lucky Block in Vanilla Minecraft (No Mods!)

: Place an Observer in the center at ground level with its "face" looking up. : Fill the Dispenser with random items like