Residents of an apartment complex recently spotted the Virgin Mary herself appearing before them, shining down on a wall of the complex. The source link includes a video with interviews. Best quote: "I know what she looks like because I go to church."

Jesus decided to materialize on a bad paint job in the home of two sisters who were renovating the house due to moving plans. The image apparently had the two reconsidering their move. And nothing says "I love you, please stay" like screwing up your renovating!

The Virgin Mary now decided to show up on a water stain of some stone wall in New Mexico. The article mentions it as an image of the "Virgin of Guadalupe" which according to Wikipedia is a famous apparition of Mary. Apparently it's actually just a portrayal of Mary that is said to have just "miraculously" appeared, which is unfortunate because I was hoping this would be the first known instance of pareidolia of pareidolia.

Jesus materializes in what appears to be a 3-year-old's finger painting of Dr. Mario. Actually it's some random splotches on some person's home in Colombia. Apparently the image is much more obvious to believers, as "throngs" of visitors started showing up to admire it.

Mary makes a rare appearance in an actual church, showing up in some sort of stain on a wall. The article mentions how some people think it looks like Jesus instead, making this a classic example of people being determined to see something in any even vaguely humanoid shape.