Hexco Ariel Hexco Can you build my monster? I used pattern blocks to build mine. I used 2 hexagons, 2 trapezoids, and 4 rhombuses. Start with a yellow hexagon. Then place a green rhombus on the upper right side and another green rhombus on the upper left side of the hexagon. Draw a red trapezoid at the bottom of the hexagon. Draw a green rhombus on each side of the trapezoid. Draw a yellow hexagon directly below the trapezoid. Draw a red trapezoid directly below the yellow hexagon. To finish the monster, draw 2 red eyes and a scary mouth on the top yellow hexagon.