Halftone it! , is a great ps-action for making halftones out a Selection. For the Halftones it was used the Bitmap Mode .. You can use the Halftone Action just for any Selection you have. Just Load your Selection and then hit play ..
Included are also a Ged Rid Of Action for deleting the white Background if needed. Combine the Halftones with other Effects or images or use it to make a 3 Color Image. Recommened is a Image with 300 DPI to get best results.