The three main elements of this festival are Music, Masks and Beads. The thrill and excitement will be surrounding the streets everywhere. As Christmas is for kids, Mardi Gras is for Adults. Costumes are the main focus that can make you the center of attraction.
There are many option available out in market. Before picking up a costume for yourself keep in mind few things like is the party Indoor or outdoor, Is the costume comfortable, do you want to go by the traditional way etc.
If you want to carry on with the classic costumes then you can dress up in Jester costume, King costume, Evil Jester or harlequin costume