Did you pick up any hell bank notes?
Dave Hartman
I know: wrong religion, wrong culture, wrong continent but I've been dying to use that joke.
Dave, bank notes have a tendency to burn in hells environment ... it's better to use coins

Thanks for commenting
Armando, thanks for the beautiful addition to the thread. Apparently it is based on the non-Catholic tradition.
Akira, Indeed , the festivity originates before Catholicism came to America
The marigold flower - named in spanish "cempasúchil" - is widely used
Here are 2 view, one from up close, another one showing the face of Diego Rivera a mexican painter