Maybe I should have done this sooner,

I would like to find links for free stencius, like for halloween and Christmas, I have an idea for them. and wanted to try them out.

You can make a stencil for chalk by printing a line drawing and then 'sewing' it.
Using an old, large needle, no thread, carefully & slowly trace the drawing.
Put the rough side up and gently rub your chalk pounce over it.

you probably could use childrens coloring pages as stencils.