in Native America." Attire The dress of most stomp dancers is casual but nice. Most stomp dancers keep special attire for ceremonial occasions, but the physical nature of the dance and summery, outdoor conditions of the dance make comfort more important than flair. Women wear skirts and blouses that usually incorporate traditional patterns. The men wear blue jeans or slacks and hats, which are usually cowboy or ballcap styles, usually with a single eagle, hawk or crane feather in the hatband. The ribbon shirt is the standard ceremonial attire for both men and women, which consists of a loose-fitted tunic decorated with ribbons. Cherokee women typically wear full cotton skirts featuring ribbonwork in a rattlesnake pattern. The women wear tortoise shell shakers, or shackles, on both legs (typically six to 12 on each leg). The shakers are hollowed out tortoise shells which have holes drilled in them and are filled with certain river rocks that will make them rattle. The traditional Creek and Seminole shell shakers are made of terrapin or box turtle shells. Lydia Sam, a Natchez-Cherokee traditionalist, was the first to dance with tin, condensed milk can leg shackles in the 1920s. Some ground leaders insist on the use of the terrapin by head lady shell shakers. This tradition continues today and most women start out with a set of "cans" before moving up to having their own set of shells. Women stomp dancers are called "shell shakers" or "turtles". Etiquette Participants and visitors to a stomp dance ground cannot be under the influence of alcohol or drugs. Depending upon the grounds, they cannot have partaken of either for a prescribed period of time before or after the dance. Photography is not allowed at ceremonial dances. The ceremonies are religious, and many participants do not feel comfortable discussing details with visitors that are not part of the tribe, particularly in regards to medicine. Pregnant or menstruating women do not enter the dance circle at ceremonial grounds. Depending on the ground, they may or may not touch medicine. Secular stomp dances During the off-season, stomp dances are sometimes performed indoors to avoid the winter cold. Some societies incorporate stomp dance into pow wows or as educational demonstrations. Caddos, Delaware, and other Woodland and Southern tribes have a secular or social stomp dance tradition. The Choctaw Nation of Oklahoma currently maintains non-ceremonial grounds for stomp dances and stickball. Chickasaws, on