Margaritas Mexican Restaurant is offering a weeklong Cinco DeMay promotion at its three locations in the Bay State. The promotion includes themed daily events, discounted cocktails, complimentary food, and chances for prizes such as a $2,500 travel voucher and a free dinner for a year. The first 25 children at each location will receive a complimentary margarita t-shirt. The restaurant will also offer a $1 "jigsaw" on margaritas throughout the day.