Get the Mardi Gras Party Started with Mardi Gras Beads. Dress up your outfit with an 8mm faux pearl bead necklace. The extra length on these necklaces means you can rope them around multiple times. These necklaces are perfect for pretend play dress up or classy Mardi Gras nights. Need an idea for an inexpensive party favor bag filler? Jewelry items are a great choice. We have the costume jewelry that will appeal to both boys and girls. Find jewelry suitable for dress up, pretend play or costume accessories.