The HX Dulcimer t-shirt.
Round up for yourself one new or used T-shirt.
I save my art in a vector format in this case .dxf and send it to the cutter. Picture is the stencil positioned on the T-shirt. (ignore the lone square cut out in the upper part of the stencil, that was something else :-/ ) Of course if you don't have these tool's you'll need to carefully cut out your stencil using an X-acto knife.