Extending the rotated triangle example http://www.texample.net/tikz/examples/rotated-triangle/ by Alain Matthes, here are rotated hexagon, pentagon and squares.

Edit and compile if you like:
% Rotated polygons% Author: Dr. rer. nat. Ismael Gutierrez Garcia\documentclass{article}\usepackage[usenames,dvipsnames,pdftex]{xcolor}\usepackage{tikz}\usepackage[active,tightpage]{preview}\PreviewEnvironment{tikzpicture}\setlength\PreviewBorder{5pt}%\usepackage{ifthen}\begin{document}\newcounter{density}\setcounter{density}{20}\begin{tikzpicture}\def\couleur{BlueGreen}\path[coordinate] (0,0) coordinate(A)++( 120:6cm) coordinate(B)++(60:6cm) coordinate(C)++(0:6cm) coordinate(D)++(-60:6cm) coordinate(E)++(240:6cm) coordinate(F);\draw[fill=\couleur!\thedensity] (A) -- (B) -- (C) --(D) -- (E) -- (F)-- cycle;\foreach \x in {1,...,40}{%\pgfmathsetcounter{density}{\thedensity+10}\setcounter{density}{\thedensity}\path[coordinate] coordinate(X) at (A){};\path[coordinate] (A) -- (B) coordinate[pos=.10](A)-- (C) coordinate[pos=.10](B)-- (D) coordinate[pos=.10](C)-- (E) coordinate[pos=.10](D)-- (F) coordinate[pos=.10](E)-- (X) coordinate[pos=.10](F);\draw[fill=\couleur!\thedensity] (A)--(B)--(C)-- (D) --(E) -- (F) -- cycle;}\end{tikzpicture}\setcounter{density}{20}\begin{tikzpicture}\def\couleur{LimeGreen}\path[coordinate] (0,0) coordinate(A)++( 144:10cm) coordinate(B)
Click to download: rotated-polygons.tex • rotated-polygons.pdf
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