put paint tape to cover the place to stencil, put paint filled balloons around canvas, pop with darts, let dry, use stencil to add silhouette - oh the possibilities. Might try something similar to this in my bedroom. No canvas for me, just white walls. :)
SIMPLE SEA GLASS EFFECT - To create a sea glass effect using any plain glass object, simply paint (the school) glue onto the surface. To make a colored sea glass effect, simply add your choice of food coloring or the like and mix thoroughly into the glue before painting.