点打ち水中花とんぼ玉【バーナーワーク】
32:18
Glass beads using lace-patterned sticks.
9:38
Process of making glass handicrafts. A Japanese glass factory with a history of 100 years
43:27
Sansibar | Wilde Inseln | ARTE Family
31:34
【とんぼ玉】くらげ玉【バーナーワーク】
53:41
All Things Glass! | How It's Made | Science Channel
24:55
Underwater flower glass beads with mica.
29:23
Harald Lesch ... und das Leben auf dem Supervulkan | Terra X Harald Lesch
14:01