Dear Badges Hunter! New badge out last night! (Feb 19, 2011).
The Mardi Gras badge was emerged at New Orleans, LA (fly there!). To get it, check in once to 3 venues categorized as “parade” (e.g. Krewe du Vieux Parade, Krewe Du Vieux Parade, Little Rascals, Krewe of Delusion).
PS. Thanks mattersofgrey.com, aboutfoursquare.com, Shawn F., Balrog and Scott.