Banners (decorative)

Banners are a Decorative Furniture item that can be placed on ceilings. They come in red, green, blue, and yellow varieties. All banner colors are crafted with Silk. They can only be placed on the underside of blocks, not wooden platforms. Despite being multi-colored, they do not require any dyes to craft.

Note that banners occupy space like other types of furniture, and thus cannot overlap with other furniture. That is, you can't put a banner "behind" another piece of furniture.

Trivia

 * Banners are the same color of the Teams in multiplayer.
 * Could be a reference to Harry Potter

History
Bannière Знамя