Hi, I have these smaller bottles, and little measuring thing. Two of the bottles say *Listerine* on them, but I was wondering if anyone knows the age of these, since so many things are in plastic now days. Also have the little glass measurement (for medicine, I believe...) as I recall this from when I was a child, so must have a few years on it. The other little glass thing, i remember from when I was a kid...do not remember what it was from, but I know my Mom used to keep toothpicks in it on the stove. Any ideas of age, etc., on anything here? TIA