I used to believe that if you ever threw a glass marble it would disappear. And by that I mean magically vanish.
I could swear my mother told me it was true, but she doesn't remember anything about it.
A childhood belief about toys

others believed things like this
- When I was little my uncle had a huge adams apple. He told me he'd swallowed a marble.— Stacey
- My cousin once told me that glass was made from ground up beetles, and I believed her! — benjymous
- When I was a child my Grandma told me if I threw food on the fire I was feeding the devil— Anthony P.
- If you click a pen to much you will disappear Anon
- I was told that if one doesn't cover their mouth when yawning that their soul would escape.Anon
- i used to believe when someone died their image on photo's would disappear— beryl's girl