Hay Bale

Hay bales are decorative blocks that can also be used to feed horses. They are able to be placed sideways, similar to the way that wood and pillar quartz blocks are placed.

Horses
Hay bales can be used to give 10 hearts and will speed growth by 3 minutes when fed to horses.

Crafting
Hay Bales are storage blocks, like diamond, iron, gold and coal blocks. However as of Minecraft 1.6.1 they can not be crafted back into Wheat. This will be fixed with Minecraft 1.6.2

Trivia

 * Hay bales burn (outside a furnace) just as long as coal blocks.
 * Hay bales are the first craftable blocks that can be used to feed a Mob other than The Player.

Gallery
Strohballen Balle de foin 干草の俵 Strobaal Snop siana Сноп сена 干草块