Light-up balloons - yes, really

Here's one of those products that gets me muttering 'in my day...', while secretly being thrilled that we live in such times as these. Light up balloons? My goodness.

Now, I've seen a room full of five-year-olds utterly and completely entertained by the good old-fashioned standard balloons, but I suppose if you want to take them to the very edge of excitement (and beyond) you buy these, blow them up, and switch the lights off. And plain old balloons will never be the same again...