Here is a story in the mainstream news that just came out.  A documentary examining whether or not they have found the nails that were used in the Crucifixion:Film claims discovery of nails from Jesus's crossI really would have thought that these would have been found sometime in the Middle Ages.  As relics, they would have been highly sought after.

Interesting Phidippides. I like the documentary, but I agree with skiguy that the evidence seems weak.