For this, the items you will need are...
- x4 Of Any Block (not obsidian)
- x1 Redstone Torch
- x1 Rail
- x1 Storage Minecart
- x1 Piston
STEP 1: Place any block that is not obsidian down on the ground.
STEP 2: Place a Rail and Storage Minecart on the track like this:

STEP 3: Destroy the block that you placed the rail and cart on. This will destroy the rail, but the minecart will fall to the floor.
STEP 4: Place 3 blocks next to the minecart, and place a piston facing downward like this:

STEP 5: Now, place the block of your choice between the piston and minecart.
STEP 6: Place a redstone torch atop the block next to the piston. This will push the block down like this:

As you can see, the minecart is not fully hidden as of now.
STEP 7:In order to conceal the minecart, place a barrier of blocks around it, and make sure to add a second layer of blocks behind it. Now, push the minecart inside the block you placed in the first place:

As you can see, the minecart is now fully concealed.
STEP 8: Right click the block you wished to be a chest and this will happen:

Yes, this opens a chest that those god damned greifers would never expect. Now you can hide those diamonds with ease!
TO DO LIST: Make this into a tutorial topic.





