I really like the below ad, I don't know why, but I do! maybe I'm just sick that way :)
I used Cheese Wiz as the product, but anything could go there in its place. I had originaly thought this would be good on a billboard as its short and easy to understand.
Situation: Old man, at his death bed saying to his grandson. "There are some things you'll miss when you die... Cheese Wiz"