These three Jewellery boxes with a smooth glossy surface decorated as follows:
Done by napkin decoupage over the entire surface. (The dark boxes preceded cover with opaque primer with a sponge). To not make creases the napkin large smooth surface better to apply as explained here:
http://lila365idees.blogspot.gr/2012/05/decoupage-decoupage-with-fan-brush.html. Before the glue dries with vatonetta dipped in alcohol to clean the spots are free. Then you add a layer of decoupage glue with glitter or glue dab with a sponge embedded with glitter. In the second case it is necessary a layer of gloss spray for protection.