Original Reddit Thread
Sheep art is a silly style trending in the /r/minecraft subreddit where people build things out of sheep. Since you have the ability to dye their wool, you could basically herd them together and paint on them like a canvas. Other people disable their AI and gravity so they will stay put like a normal block, allowing for 3D sheep art.
I went a step further and converted all blocks to look like sheep >:D
"sheep art? really?"
Yeah it's a weird trend isn't it. But there's some pretty funny builds people done.
For example, sheep-ception by Antvenom
or an apple