Make a mask out of plaster dipped in water and let it dry.
Cut small pieces of black/silver silk paper and glue it on the mask so you canÂ´t see the plaster. First paint on glue mixed with water (half glue half water) put on the silk paper and paint on the same glue/water liquid right away. Let the mask dry again.
If you like you can paint the mask with lacquer. Let the mask dry again. Glue on feathers, ribbons and all the things you like.