In that same legit world, I also began making an underground storage room like my 1.7.3 map did. The two double chests in my base were getting very full and very disorganized. Below ground, where I began hallowing out the area for my storage room, there was mostly dirt and I decided to keep the theme by making the walls out of dirt. The problem was, there were small caves on either side of me:
My solution was simply to place dirt where these problem spots existed. Eventually I got a nicely organized set of chests, signs, and workbenches established. I moved the vast majority of the junk upstairs to these things. I didn't realize just how many iron ingots I had until this was done!
Of course, one block had to be different. Somehow, I had an actual grass block form.
Not to mention the neighborhood spiders, poking their noses where they ought not.
Now, I have a creative world that is non-legit. One of the things I'm wanting to do, as practice toward the automated city, is make a system that uses water currents to harvest seeds and flowers. It utilizes a piston, redstone, and bone meal. Here's an overhead glory shot:
On the bottom right you see a dispenser atop a wood block which has a button. When you press that button, the dispenser will shoot bone meal to you. When you right-click a grass block with bone meal it will generate wild grass and flowers. On the bottom left you see a button connected to restone wiring. That will activate the piston, causing it to retract its arm. When that happens, water will briefly flow from the source block above the arm. The water, confined by the Netherrack fence (which could easily be any other type of block, even pressure plates), will flow and cause all the wild grass and flowers to break. This will drop flowers and seeds. Then, once the signal from the button dies, the piston arm will extend and cut off the supply of water. This leaves the loot in the area to be collected.
I wanted to use another couple water streams so that items will flow right toward me instead of requiring me to walk around and collect. Unfortunately, water mechanics are strange and the harvesting water will not flood the entire area. Here's the wiring:
This is only a model and could be optimized greatly. The wire wraps around and the signal is inverted at the plank and redstone. The repeater was originally meant to extend the signal but, given the inverter, is not actually required. That wire charges the wood it runs into, turning off the torch on top of it. That torch actually activates another torch, which is hiding behind the wood above it. This activated torch powers the piston, keeping the arm extended. When you turn on the circuit, everything reverses: the first half is on, the inverter turns the normally powered section off, and the pair of torches reverse states. With the top torch off, nothing is powering the piston and it retracts, letting water out. Because a button is used, the signal lasts just a few moments before reverting to normal. Here's a picture of the harvester in action. Don't mind the pumpkins on sticks - those are part of an ad hoc archery range.
If I ever include this in my legit map, I want to utilize water currents so that the seeds and flowers flow into a collection point somewhere in my house. Manual usage of bone meal will always be necessary, of course; but with pistons and restone, harvesting could be much simpler.
