James Byrnes, bottom right, teaches a class on Saturday at Stained Glass Express in Manchester.

James Byrnes, left, teaches a class on Saturday at Stained Glass Express in Manchester.

Holding it in the torch flame, a participant turns a glass rod into a bird during a class on Saturday at Stained Glass Express in Manchester.

James Byrnes, left, demonstrates a technique as student Lisa Costello watches during a class on Saturday at Stained Glass Express in Manchester.

James Byrnes, third from right, teaches a class on Saturday at Stained Glass Express in Manchester.

James Byrnes, left, talks to student Jason Morgan during a class on Saturday at Stained Glass Express in Manchester.