Eskimo yo-yo

An Eskimo yo-yo[a] or Alaska yo-yo[b] (Central Yupik: yuuyuuk;[19] Inupiaq: igruuraak) is a traditional two-balled skill toy played and performed by the Eskimo-speaking Alaska Natives, such as Inupiat, Siberian Yupik, and Yup'ik.

[8][9] The Eskimo yo-yo involves simultaneously swinging two sealskin balls suspended on caribou sinew strings in opposite directions with one hand.

[21] Other tricks or patterns include atypical beginnings and wrapping and/or bouncing the strings around a part of one's body and then continuing with the orbit.

[22] The objects at the end of the string are made in a variety of shapes, ranging from seals, ptarmigan feet and dolls, to miniature mukluks and simple balls.

[10][15][18] It possibly evolved on St. Lawrence Island from the similarly constructed sinew and rock bolas used in bird hunting.