Dale Bigford has wrapped up his Immortality Box project and in many ways he's saved the best for last. That includes Herbert West's prototype reanimation serum and a fantastic set of extraterrestrial symbionts contained within a functional stasis device.
You really need to click on over and read through the whole thing. It's not only one of the most impressive prop projects ever featured here, but an engaging example of item-based storytelling. I'd happily pay for a book that expands on the narrative he's created.