Help me decide for a tattoo design

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they say: A tattoo is a mark made by inserting pigment into the skin; in technical terms, tattooing is micro-pigment implantation. Tattoos may be made on human or animal skin. Tattoos on humans are a type of body modification, while tattoos on animals are most commonly used for identification. Tattooing has been practiced worldwide. The Ainu, the indigenous people of Japan, wore facial tattoos. Tattooing was widespread among Polynesian peoples, and among certain tribal groups in the Philippines, Borneo, Africa, North America, South America, Mesoamerica, Europe, Japan, Cambodia and China. Despite some taboos surrounding tattooing, the art continues to be popular all over the world. im been so interested in having tattoos but until now i havent decided what design to ink my skin. seeing those designs in the mags,internets and brochures makes me feel so exciting on having my skin inked..so i want you guys to help me decide on what tattoo..im planning to cover my whole right arm and whole back with ink..please help me... tnx