Hollows

Hollow beads are made by making two disc-shaped beads in close proximity to one another (start out with about the thickness of a rod apart, as you get better, challenge yourself!), then melting these discs so they start leaning towards one another and, finally, close the gap and become one bead, trapping the air inside them. This air, as it heats up, will expand, making the bead larger. Remember to make your walls quite thick to start with, they will thin as the air expands and makes the bead bigger. Also, remember to keep heating the bead evenly. If you want to, you can cheat a little bit by making the two discs so they lean towards each other to start with.