[header] How to make golden snitch hanging decorations [title] Paint the top half of the polystyrene balls gold using the small brush. [step] Two thin coats are better than one thick, so it won't look great at first, don't panic! While they dry, find a circular hollow to rest them so they don't roll about. Leave to dry completely. 
[title] When dry, paint the bottom halves and leave to dry again. [title] Repeat with a second coat so no white is showing through.