Uhh, these mushrooms aren't lethal. They ARE poisonous, but actual cases of people dying from consuming them are rare-to-nonexistent .

What about that Christmas Special from a couple of years back? I remember somebody singing to some sharks.

Maybe it's Apple-Cedar Rust (Gymnosporangium juniperi-virginianae) - a gall that grows on junipers. http://en.wikipedia.org/wiki/Gymnosporangium_juniperi-virginianae