LOL! I guess they look pretty innocuous to people who have seen them all their lives within their cultures.
I thought they’d be fun for our Hallowe’en, which is also tied up historically with a time in the calendar dedicated to praying for and honoring the dead.
This is what they’re based upon:
https://en.wikipedia.org/wiki/Calavera
This Texas gal has seen them forever but they still freak me out.