Okay i though of some things i would like to be in the game.
1. Scarecrow: make a torch post or something, and pick up a skeleton and right-click to prop it up on the pole. I think this would be cooler then bodies piled up everywhere and i think that if you are the one to make them it should only increase unhappiness on other people.
2. Metal lock: a 1x1(with a key) item you can attach to stuff you don't want other people to open.
3. Towers: a 4 story building with a view about the square area of log cabin stacked up. I think the 4th floor should be open air and have the ability to put a telescope or something up there that lets you view the area around it you explored.
I though these were cool ideas and i might add more later if i can think of anything.