Detail planks are my favorite thing in the game.

[Pasquale Sciarappa]

Useful, funny, and completely broken. The ability to orient them however you like is almost too much freedom. Amazing for building into the sky and much more cost efficient than building roofs forever. If you place one going through yourself in a tight space you can clip through walls. If you build planks below the water and then jump right above them, you fall to the plank as if there was no water at all, regardless of how deep the planks are. You can even breathe underwater once you land on em. Pile them on top of friends, crop plots, bird nests, you name it. I'm sure there's more they can do, but for now I wanted to share my fondness of detail planks with you.