Hi, AlexanderBMJ here and today I will do something a little different. I will show you how to make a ice farm in Survival! This is not my design. I saw this on Sethbling's YouTube channel YouTube channel. He is really awesome so please check out his channel by clicking his name.

You need 105 regular pistons, 4 hoppers, torches, 2 water buckets, a lot of wood and a lot of redstone. You also need to build this in a tiger biome or a snow biome.

make a wall of pistons like this.

Side view:  WWWWWWWWWWW             Top view:
                 XXXXXXXXXXXXXXX             LLLLLLLLLLLLLLLLLLLL
                 XXXXXXXXXXXXXXX             LWWWWWWWWWWWWL
                 XXXXXXXXXXXXXXX             LLLLLLLLLLLLLLLLLLLL
                 XXXXXXXXXXXXXXX

X= Piston W= Water L=Wood

Put water on the top and let it freeze.
connect all the pistons with redstone and make a hopper clock.



Sethbling's video