Here's an idea I just had for a Cthulhu Mythos story and which I'm never going to make anything of:
In 1966, the mysteriously undecayed corpse of an enormous sea creature is brought up from the Pacific seabed. The government puts it on ice and hides it in a secret facility.
In 2009, they finish sequencing its genome.
In 2010, they clone it.
(Unfortunately, I can't figure out whether this is just inspired by a bunch of other modern-day Cthulhu stories, or if it's actually an unconscious plagiarism of someone smarter.)