someCrazyPattern.js

var x = (function () {
    var a = function () {
        return s;
    };
    var b = function () {
        return s.a();
    };
    var s = {a: a, b: b, name: "x"};
    return s;
}());

var y = (function () {
    var a = function () {
        return s;
    };
    var b = function () {
        return s.a();
    };
    var s = {a: a, b: b, name: "y"};
    return s;
}());

var z = (function () {
    var a = function () {
        return s;
    };
    var b = function () {
        return s.a();
    };
    var s = {a: a, b: b, name: "z"};
    return s;
}());

x.a() === x; // true.
x.b() === x; // true.
y.a() === y; // true.
y.b() === y; // true.
z.a() === z; // true.
z.b() === z; // true.

z.a = y.b;
y.a = x.b;

x.a() === x; // true.
x.b() === x; // true.
y.a() === x; // true.
y.b() === x; // true.
z.a() === x; // true.
z.b() === x; // true.

someCrazyPattern2.js

var x = (function () {
    var a = function () {
        return s;
    };
    var s = {a: a, name: "x"};
    return s;
}());

var y = (function () {
    var a = function () {
        return s;
    };
    var s = {a: a, name: "y"};
    return s;
}());

var z = (function () {
    var a = function () {
        return s;
    };
    var s = {a: a, name: "z"};
    return s;
}());

x.a() === x; // true.
y.a() === y; // true.
z.a() === z; // true.

z.a = function () {return y.a();};
y.a = function () {return x.a();};

x.a() === x; // true.
y.a() === x; // true.
z.a() === x; // true.

someCrazyPattern3.js

var myConstructor = (function () {
    var property = function (self, value) {
        return function (given) {
        	value = given ? given : value;
    		return given ? self : value;
    	};
    };
    var objProperty = function (self, obj) {
    	var props = {
    		self: self
    	};
    	Object.keys(obj).forEach(function (key) {
    		props[key] = property(props, obj[key]);
    	});
    	return props;
    };
    var MyConstructor = function () {
        var self = this;
        self.props = objProperty(self, {a: 10, b: 11});
        return self;
    };
    
    return function () {
        return new MyConstructor();
    }
}());

var a = myConstructor();
var b = myConstructor();
a.props.self.props.a(12).a() === 12; // True.
b.props.a() === 10; // True.