Banner

Banners or Flags are upcoming blocks that were introduced in the 14w30a snapshot.

Properties
A banner holds a flag that can take on many different appearances. It can support approximately 400^6 different patterns. It would appear that banners, much like signs, can be placed both on the ground, facing different directions, and on walls. A banner is 2 blocks high and 1 block wide. Banners will also be able to be worn in the helmet slot.

Patterns
If you combine dyes in different patterns with a banner in a crafting table, different patterns will show up on the banner. You can also add mob heads in the banner as well.