Some shapes that remind me of Sputnik
Above: A kind of sea urchin Salenocidaris hastigera (dried), a Salenioida.
I wasn't sure, but sea urchins are animals, related to starfish.
Above: This is not an image of a Sputnik Virophage ("virus-eater")--it is an electron micrograph of the giant Mimivirus that the Sputnik virophage infects.
Above: Backstrap Weaving (w/ a deceptively simple loom made of sticks, an ancient technology from Peru (and other places)) in process by Laverne Waddington. Her blog: backstrapweaving.wordpress.com
Above: Red Hair Girl standing on the star map inlaid on the terrazzo floor at Hoover Dam [info on dam artwork]
Word origin of Sputnik: