Ravens.
Terrarian
Building in Terraria is a lot of fun and very flexible, but every now and then, you come across a situation where you wish there could be a bit more visual ambiance to it. Like sunrays or spotlights, specifically. Either peering through the windows of a tall castle or on a brilliant stage. Something that could be much like the cannon/portal gun station mechanics where it could be aimed, but also nothing too bulky for those smaller windows.
Perhaps like the Starbound item:
Here's a snip of them in action:
And it could really add some atmosphere to a ballroom such as this one:
Perhaps like the Starbound item:
Here's a snip of them in action:
And it could really add some atmosphere to a ballroom such as this one: