[Rendar]

It'd be cool if we could have a 1-way see through wall for houses. Choose the setting for it and you could make any wall like that. It would provide places (like say, highly elevated guard towers) to actually see things properly, whilst not being too visible from the ground level. It could also give those creepers the yearnin they want to have a walled area that a character can see through via peep holes and the like.

[Neus]

Not really feasible in BYOND, I'm afraid.