I am 0 for 2 on my glow in the dark pin experiments.
We filled our 4 glasses with different amounts of water, placed our glow sticks inside and began playing music watching for some kind of faint color to rise from the the cup aaaaaannnddddd, nothing.
You can see in the pic below my little helper off to the left tapping the yellow cup. Yeah, we didn't have anything too exciting happening here...
This is what we were anticipating...
(Pic above from playathomemom3.blogspot.com)
To check out the original site just click HERE
(This is a whole blog filled with ideas for entertaining kids)