(function(){

function avatarOffset(offset){
    return Vec3.subtract(MyAvatar.position, offset);
}

var sphere01 = Entities.addEntity({ type: "Sphere", position: MyAvatar.position });
var sphere02 = Entities.addEntity({ type: "Sphere", position: MyAvatar.position });
var sphere03 = Entities.addEntity({ type: "Sphere", position: MyAvatar.position });

})();