I saw a show once where some bozo in Italy proved to show how the Shroud was made by taking a sheet and putting it over a bronze bust of a man and sticking it in a pizza oven for 25 minutes at 375 degrees. The result looked like a burned sheet to me but he swore it was a replica of the Shroud.
If the Shroud was made in such a way as that, it would easily be debunked with minimal analysis. Besides, whoever may have faked the Shroud would have had to have had access to the suderium (separate cloth that was wrapped around the head) to make sure they replicated the blood stains on the head to match the blood stains on the suderium. In addition to this extreme unlikelyhood (The Shroud and the Suderium took two different paths through history) the faker would also have had to have had access to microscopic pollen native and local to Jerusalem and implanted it on the Shroud. Plus have the ability to irradiate the image onto the cloth.
Now that is quite a task, and would require incredible forethought, ingenuity, planning, and perfect execution. I think it is pretty safe to say that Shroud Fake = LOL!