Ten Foil

Sam: Mom, did you know that Elmo made a ball out of ten foil.

Me: Yeah. I saw that. So it wouldn't pop when the cactus played catch with it.

Sam: Yep. And when I'm a superhero, I'm going to make my balls out of 30 and a thousand foil.

Me:

Sam: Isn't that cool, Mom?

Me: Yeah. You know it's called tin foil though, right? Not ten foil?

Sam: Yeah. But mine is going to be 30 and a thousand foil.

Me: Ok, dude.