One method for creating your stencil for screen printing is to ink directly on partially translucent paper such as vellum. Vellum is also use for printing architecture blue prints. These vellums can then be used to transfer my images onto a screen for print. Images in this state are ready to burn and laid down on some t-shirts.

inking vellum paper

inking a snail onto vellum paper

Medium: India ink on vellum