For this Peacock costume I used a simple blue/green dress, long sleeve t shirt, gloves and tights.

The peacock fan was made from a backpack that was cut off from its main body.  The straps of the backpack were covered with blue fabric.  The feathers were arranged by height in a fan and secured with hot glue and duct tape.  The tape/glue body was then covered with a foam plume, foam was used to make it lightweight.  Each feather was colored and glued individually to give it a little depth.  Face painted to finish off the look.  The costume was a huge hit!