To work you will need:
Glass lamp or a sconce.
Any stained glass paints that do not require baking.
The contour of the glass, or several different colors, without requiring the firing.
The printed pattern
Step by step instructions:
1. Cut a stencil of tracing paper (it repels water, which is contained in paints). We impose it on the bra and draw out the circuit on the glass. Give dry (some circuits drying time up to 3 days)
2. Again impose stencil paints colorable space inside contours. To some, it may be convenient without a stencil.
I enclose two more cliches here for such lamps
stencils for them