Trash Compactor

The trash compactor would give you a place to put all of the Useless junk in your inventory,

Use:

You can put blocks, items, tools, mobs, other players, etc that you do not need anymore (Like the first wooden pickaxe you make) into the compactor and the compactor can get rid of it! And can even sometimes even give you stuff like bonemeal and other items.

It can also work well as a trap for mobs and other players. for example. if you build a ring of compactors around your base, any mobs or players can get grinded into it. And you can possibly build a Bonemeal and other item farms out of them!

Redstone

The compactor also has the ability to act as a power source for Redstone. It can generate power to activate the Redstone if it compacts something. Imagine it like a furnace that can generate electricity when it's smelting something.

Crafting recipe

It would require 1 Redstone 1 Hopper and 7 cobblestones

it will be crafted like this: 

(C = Cobble, R = Redstone, H = hopper)

C H C

C R C

C C C

Why not just drop it in a hole or lava?

The compactor has more rewards for using it such as:

• Getting occasional rewards for compacting things such as Bonemeal and others.
• Powers redstone and lights
• Can be used as a defense
• Farms can be made with them

And you don't need to make a Redstone contraption just for your trash. The less likely chance that you might fall into the lava and die. And lastly, it can quickly get rid of your trash doing it faster than waiting for it to despawn