We recently had a very enjoyable course on stained glass at Willowbank, with instructor John Wilcox of Vitreous Glassworks.
John was an excellent instructor, who has worked on some really amazing projects.
I find glass to be a challenging material to work with, especially cutting some of the textured or opalescent glass, but am happy with the results of my first project. I hope to put this small window in the gable end of my workshop next summer.