While I don't usually make things that aren't completely customizable, I couldn't resist the idea of this. Here we have a fun and flirty cocktail dress. The top features glitter overlay that is recolorable, I would recommend doing plain colors only, no patterns since the glitter part of the top is an overlay and that may lead to it looking rather strange. It comes in one preset and has 3 recolorable channels.
Comes in both Sims3Pack and .package files.