group() {
		group() {
			cube(size = [1, 1, 1], center = true);
		}
		multmatrix([[1, 0, 0, 2], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
			group() {
				cylinder($fn = 0, $fa = 12, $fs = 1, h = 1, r1 = 0.7, r2 = 0.2, center = true);
			}
		}
		multmatrix([[1, 0, 0, 2], [0, 1, 0, -2], [0, 0, 1, 0], [0, 0, 0, 1]]) {
			group() {
				cylinder($fn = 10, $fa = 12, $fs = 1, h = 1, r1 = 0.5, r2 = 0.5, center = true);
			}
		}
		multmatrix([[1, 0, 0, -2], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
			group() {
				sphere($fn = 8, $fa = 12, $fs = 1, r = 0.5);
			}
		}
		multmatrix([[1, 0, 0, -2], [0, 1, 0, -2], [0, 0, 1, 0], [0, 0, 0, 1]]) {
			group() {
				difference() {
					cube(size = [1, 1, 1], center = true);
					cylinder($fn = 0, $fa = 12, $fs = 1, h = 2, r1 = 0.4, r2 = 0.4, center = true);
				}
			}
		}
		multmatrix([[1, 0, 0, 0], [0, 1, 0, -2], [0, 0, 1, 0], [0, 0, 0, 1]]) {
			sphere($fn = 16, $fa = 12, $fs = 1, r = 0.7);
		}
	}