Small Scale Military Headquarters

I have bought a plotter and want to use it to make stencils for my airbrush.

But what kind mask or film do I use and where do I buy it online?

The stretch mask will primarily be used on non-porous surfaces and have to be especially suited to conform to curved and irregular surfaces.

Hope for your help

Is your plotter a vinyl cutter? or a printing plotter? If you have a vinyl machine you would probably be best suited to a paint mask material bought at any Sign Supply Store. If the plotter is for architectural Drawings etc. You would be best served plotting on the paint mask and then hand cut. Most Architetural plotters have a ballpoint pen tip and that would work great on paint Mask.