Here is one way that I used a scrap piece of film. I drew the image on the shiny side of the film with black ball point pen. I used an exacto knife to scratch in the design on the not shiny side of the film. This image was loaded into a color enlarger and printed onto color photo paper.
I made this years ago now, but I still really like the image. I think I did other drawings on film and did the same thing, but this one had the best result.