I'm baking some cupcakes in a few weeks and I want to ice them with roses on the top. Thing is, I want the roses to be white with silver edges to the petals. I've been looking into it and I don't know which way would be the best to achieve a nice sparkly silver. Should I spray it on? Use glitter and a paintbrush? I've never used anything like glitter or glitter sprays before, so I don't really know what would give me the right effect.