Today I'll show you how to create a cobblestone generator, one of the first steps in creating a successful island in SkyBlock.
I know there are already tutorials on how to make one, but I thought I'd give it a shot as well.
Step 1: Dig four straight blocks in a row, all one block deep. Make one of the inner holes two blocks deep.

Step 2:Fill in the water (or ice) on the side with the deeper hole.

Step 3:Fill in the lava on the other side.

And there you go! Instant cobblestone, ready to mine. If you want to step it up a notch, try these suggestions.
A Quadruple Generator
Because one cobblestone generator isn't enough, right? Simply follow the same direction as a single generator using the same lava source block. Mining and gathering cobblestone will be a lot faster if some friends join you!

Less Wasted Into the Lava
Don't you hate it when the cobble burns into the lava, wasting the piece of cobble? Simply dig down one block next to the cobblestone and mine from there, making it easier for you to collect them. It doesn't work 100% of the time, but it definitely saves you a lot of time mining more cobble.

That's it for now! I may make more tutorials soon, but thanks for reading!
