Ideas with Redstone

A lever is used to move two pistons, one on top and one on the bottom, to push the stones away. It is disguised as an oven.

The zombie tries to get to the villager, but the path changes every time the zombie runs across the pressure plate.

After a period of time, a block of sand is removed from the glass column.

With this circuit, which can hardly be surpassed in primitiveness, you can introduce opening hours. The door closes when it is dark. E.g. for a park, a public building, its garden, etc.

If you change a block above the sticky piston a little, there is a permanent redstone signal.

Behind the picture is a pressure plate that you can throw an item at to trigger it.

With the help of music blocks you can compose your own music in Minecraft.

This circuit shoots rockets at regular intervals at night or during rain/thunderstorms.

An oven that can melt/fry etc. up to 1728 things in a row!

On the left, the items are loaded from the crate into the Minecart until the crate is empty. Then the Minecart is sent off automatically. On the right, the items are then unloaded into another crate.