There was a popular rumor back in grade school that BUBBLE YUM gum was made with spider eggs.
A childhood belief about chewing gum

others believed things like this
- Someone told my that rice was really spider eggs. I still don't look at it the same. Anon
- I used to believe that the bubble gum medicine was really made of bubble gum. i believed this until i was 16.— Shawn
- I used to believe that only brown eggs came from chickens. I thought white eggs were made at the store— Destiny
- I used to believe that if I swallowed bubble gum, a bubble gum tree would grow inside of me. — Ryan
- I used to think that eggs were made in a factory. The oval shell made them fit perfectly in the egg cartons.— Sherry
- When I was liitle, I used to believe that if a spider would bite me than I would become Spider-Man!!!— IronManxD