Get the Mardi Gras party started with a Feather mask. These rainbow masks are the perfect way to remain in disguise at any masquerade Costume Halloween Mardi Gras or carnival party or event. Masquerade or costume parties are a great way to entertain. Make sure all your guests can participate in the fun by giving a way a mask as a party favor. Party guests love to be in disguise. Stock up on eye and half masks to make your night a success!