When planning a decorative glass window for your home you have the choice of techniques -- stained glass, fusion glass, or a mixture of the two. Which is best for a particular location depends upon many factors.
BUT FIRST, I'll clarify the techniques: In a stained glass window (maples leaves below) the pieces of glass are held together with solder applied to copper foil or by lead channels. Fusion glass is made by layering small pieces of glass on a large sheet of clear glass and fusing it all together in a kiln. You don't see any lead lines (the birch trees).