bubbly experiment

This one was part of a "newbie" challenge in a glass forum I am on, to just see how to mess with glass. It's badly shaped, I tried to even it out but the bubbles started to pop on the surface, so I had to leave it. Which is ok, this type of bead is not stable and I would never give one to anyone, it will eventally crack. But it was fun to watch! Looks like soda!
<img src="http://www.juiceglass.com/images/beads/fizzybeadwc.jpg">
Fizzy Lifting Bead