The Tuit, and a round one too, what more can I say:
I cannot take credit for inventing this, I first saw it on my chemistry classroom wall, has anyone else heard of one?
a "silly putty animal" i got as a kid was called a Round Tuit, with this exact thing printed in the packaging.
it was just a blog of silly putty with googley eyes in there.
It glowed in the dark, and one day i absentmindedly put it in my pocket.
Then Round Tuit was no more, and my pocket glowed in the dark from then on.
truestorybro