More to explore:
To everyone disappointed with these- these are actually LED lights in balloons. They are sold, and are usually on sale on "kgb deals". A glow stick in a balloon is going to look like a glow stick in a balloon, which i am fine with, im just going to string them to a fence etc.
I just thought of this. I thought it had never been done before. It's an awesome idea.
the ones from walmart with the light in them will not float with helium. they are just for filling with air.
Tried this for my angel sons balloon release and they didn't glow at all! :-(