Graphics3D[{{Polygon[{{1.15, 1.05, 1.}, {-0.45, 0.65, 1.}, {0.05, -0.05, 1.}, {0.45, -0.05, 1.}}], Polygon[{{0.3, -0.9, 0}, {-0.5, -0.9, 0}, {-1.5, 0.5, 0}, {1.7, 1.3, 0}}]}, {Polygon[{{1.7, 1.3, 0}, {-1.5, 0.5, 0}, {-0.45, 0.65, 1.}, {1.15, 1.05, 1.}}], Polygon[{{-1.5, 0.5, 0}, {-0.5, -0.9, 0}, {0.05, -0.05, 1.}, {-0.45, 0.65, 1.}}], Polygon[{{-0.5, -0.9, 0}, {0.3, -0.9, 0}, {0.45, -0.05, 1.}, {0.05, -0.05, 1.}}], Polygon[{{0.3, -0.9, 0}, {1.7, 1.3, 0}, {1.15, 1.05, 1.}, {0.45, -0.05, 1.}}]}}, {Boxed -> False, DisplayFunction -> Identity}]