For some basics on using stencils, I tried all sorts of techniques on ATC's.
Today number 10, the last one for now.
Here is how you make this background:
Position your stencil onto the cardstock.
Dab some gel medium over it. Leave to dry.
Sponge with various colors of distress inks.
Splatter over it with some water droplets.
Magenta products used: