Hire a Mariachi band to accompany the group and serenade you during dinner. For an authentic celebration, conduct a Menudo bake-off. Menudo is an aromatic soup made of tripe, hominy and chili, then steamed for hours with garlic and other spices. Help your guests learn a little Spanish. Tap into a Spanish dictionary and teach guests a phrase they can use over and over during the party for interesting conversation.
Hosts can wear sombreros and traditional Mexican clothing for added authenticity.
Brightly-colored Mexican blankets can double as table cloths. Today's stores are stocked with chili pepper and terra-cotta dishes inspired by Mexican heritage. A few of these items will liven any Cinco de Mayo party.