TruTV.com has a post of 20 Jesus conspiracy theories. Most of it covers the Da Vinci Code type stuff, Mary Magdalene, Holy Grail, etc. It also has the Shroud of Turin and a brief overview of his alleged time spent in India. They covered this discussion on Ancient Aliens (I think??… I’ll have to try and find more on that when I’ve got some free time).
It has a slide discussing a theory that he ate mushrooms during the time the Bible says he ate manna. I do remember that Ancient Aliens had a discussion on the manna machine being an alien artifact. I’ll post the video below the links to the Jesus article.