JE*Republic has some really pretty dresses available in their (in-world) group-only lucky boards! The latest one to be added is the lovely Isabella dress, which is pure loveliness. Feelin' lucky? Head over to JE*Republic and see if it's your lucky day. Be sure to also check out the full priced items that are available, as well as the other group goodies!
-Dress: JE*Republic (free)