Well! Now I’m convinced!
Actually, there’s a bit of irony here. The image on the tilma of Juan Diego is a miraculous image on an ordinary household object. When someone comes up with an image on a steam iron or toasted cheese sandwich that looks anything like the image on the tilma, I’ll take it seriously.
The tilma, btw, is made of rough hemp, and should have crumbled into dust after about ten years, but is completely sound after 500+ years.
Those who say they reject all such miracles out of hand have to simply ignore a lot of well-documented facts. Just as those who reject the Church have to ignore the lives of the saints.