By placing a sulfur cube on top of a wall, and then pushing another wall inside of the sulfur cube, you can make slabs of any block that a sulfur cube can become. Just throw a splash potion of invisibility on the cube to get rid of the outline, and you'll be left with just the block.
You can make some pests and bugs by using Item Frames with mob spawn eggs and putting pressure plates above them. The Ocelot one is supposed to be a bee, not quite sure if it's recognizable though.
There's also a few other things you can do with this, the closed eyeblossom for example looks somewhat like a key when put in an item frame with a pressure plate above and spears can be used to create a paper chase.
Current Minecraft project, 3x3 horizontal fan made using trapdoors. Interchangeable blades making use of a timing mechanic in the bottom most relay. Now a curved, straight or triangular blade design is possible with one block swap.
Working on making the dimensions smaller and more build friendly. Trying to workout how to incorporate the green layer and its inverter into the blue layer.
The initial design of the bottom set of torches I stole from somebody to get started. I’m not sure who but they made a post a while back on YouTube. If someone knows who that is and could credit them, you’re awesome.