% Source: http://tex.stackexchange.com/a/129306/23931
\documentclass{standalone}
\usepackage{tikz}
\begin{document}
\begin{tikzpicture}
\fill[color=black!40!white] (-6,-6) rectangle (6,6);
\foreach \n/\r/\twist in {70/5/12,56/4/-12,42/3/12,28/2/-12}{
\foreach \m in {1,3,...,\n}
\draw [thick,color=white,shift={(360/\n*\m:\r)},rotate=\twist+360/\n*\m]
(-.15,-.15) rectangle (.15,.15);
\foreach \m in {2,4,...,\n}
\draw [thick,color=black,shift={(360/\n*\m:\r)},rotate=\twist+360/\n*\m]
(-.15,-.15) rectangle (.15,.15);
}
\end{tikzpicture}
\end{document}