One way to use stippling to create backgrounds is to use the torn edge of a paper to mask parts of the paper to which you are applying ink. Move the paper to add more ink to other parts. Add other colors as desired.
Stippled on tumbled glass, stormy sky and crushed sapphire Distress inks:
You can also use stencils when stippling. For this piece, I first rubbed on antique lined Distress ink to add variation in color to the white paper. Next lay stencil over paper and use stippling brush to add color as desired. Here I've added wild honey and dried marigold Distress ink.
With the stencil still in place, I also stippled on worn lipstick, victorian velvet, mulled lavender and dusky concord Distress inks. Then removed the stencil:
Stippling can also be done directly to the paper without stencils or torn paper. Here I've started with wild honey Distress ink: