For the Feast of Our Lady of Guadalupe, our parish had some of the kids dress up in Mexican folk attire. The girls dressed up as our Blessed Mother (under her Virgin of Guadalupe title) and the boys as Juan Diego, the indigenous man who was the recipient of the 16th century apparitions near Mexico City.
Here is Matthew dressed as Juan Diego.
I’m not going to relate the entire story (you can read it here), but suffice it to say that the image on the poncho was a result of Juan gathering roses in December (a miracle in itself) and when he opened the poncho in front of his local bishop, an image of the Blessed Mother had been impressed from the roses on the poncho. That poncho is still on display and I believe the analysis of the image supports a stain rather than a painted on by human hands.