Step 1: Make A Deep Hole
You must do this in creative mode, the hole must be quite deep
Step 2: Dig One Block Deep Next To The Deep Hole
Step 3: Now On Top Of The Deep Hole Place A Brick Or Stone
One block only!
Step 4: Now Time For Some Sand!
Place at least 6-8 blocks on top of your brick or stone,you can put as many blocks as you want on it but don't place too many.
Step 5: Now Break The Brick Or Stone