She agreed making a float sounded like a good idea then wanted to know what kind (aka theme). I said how about a purple cow? She said, "so a farm theme." I said, "no we're only making a purple cow." At that point we went for the grape drink.
After getting the drink she wasn't any closer to understanding what in the world I was talking about. She was trying to make her own selection in drinks.
After getting home and putting away all the groceries I put some ice cream in some cups and poured the grape drink over top.
And just like that I had two purple cows and a child who now has a better understanding of what a float can be. It's not all about construction paper and cardboard.
You want a float now don't you? =)