Hey that would work too! Make up a new fashion that was all the rage.
We’re gonna need a bigger box
Oh and the plans for that machine in Contact with a map showing where it was built, then bury some wreckage of the machine in the area.
A bunch of photoshopped pictures of human heads on dog bodies / dog heads on human bodies, with a 20 page document full of medical mumbo-jumbo describing the transplant experiments and a screed proclaiming that dogmen will soon rule the earth.