Make stencils with islands!
Here are some simple solutions to make stencils with islands!
http://www.instructables.com/id/Stencils-with-Islands-1/
http://www.instructables.com/id/Stencils-with-Islands---Pt.-2/
http://www.instructables.com/id/Stencils-with-Islands-1/
http://www.instructables.com/id/Stencils-with-Islands---Pt.-2/