HAHA, DD's are awarded everyday by site admins based on certain genres. They are seen on the front page and the bottom of the page. People can browse through them. They basically increase traffic to that deviation and your profile. In other words, more Pancreatic love! Llama's are a deviantart meme gone random and occult like. They are for pure shits and giggles. You can trade them for points. The exchange rate it 1 to 1.