Custom shapes for Newsprint Filter

[rospo]

Hi all,

I am wondering how I can add custom shapes (not round, line, diamond, or square) to the newsprint filter.

I would like to rasterize an old grayscale photo using five-pointed-stars.

• Can it be done in gimp using the newsprint filter?
  
• How can we add custom dot-shapes to this filter?
  
• Suggestions for work-arounds?