diff --git a/source/poodinis/registration.d b/source/poodinis/registration.d
index 5b8915e..7759b02 100644
--- a/source/poodinis/registration.d
+++ b/source/poodinis/registration.d
@@ -67,16 +67,19 @@ class Registration {
 }
 
 alias CreatesSingleton = Flag!"CreatesSingleton";
+alias InstanceFactoryMethod = Object delegate();
 
 class InstanceFactory {
 	private TypeInfo_Class instanceType = null;
 	private Object instance = null;
 	private CreatesSingleton createsSingleton;
+	private InstanceFactoryMethod factoryMethod;
 
-	this(TypeInfo_Class instanceType, CreatesSingleton createsSingleton = CreatesSingleton.yes, Object existingInstance = null) {
+	this(TypeInfo_Class instanceType, CreatesSingleton createsSingleton = CreatesSingleton.yes, Object existingInstance = null, InstanceFactoryMethod factoryMethod = null) {
 		this.instanceType = instanceType;
 		this.createsSingleton = existingInstance !is null ? CreatesSingleton.yes : createsSingleton;
 		this.instance = existingInstance;
+		this.factoryMethod = factoryMethod !is null ? factoryMethod : &this.createInstance;
 	}
 
 	public Object getInstance() {
@@ -88,14 +91,18 @@ class InstanceFactory {
 			return instance;
 		}
 
-		enforce!InstanceCreationException(instanceType, "Instance type is not defined, cannot create instance without knowing its type.");
 		debug(poodinisVerbose) {
 			writeln(format("DEBUG: Creating new instance of type %s", instanceType.toString()));
 		}
 
-		instance = instanceType.create();
+		instance = factoryMethod();
 		return instance;
 	}
+
+	private Object createInstance() {
+		enforce!InstanceCreationException(instanceType, "Instance type is not defined, cannot create instance without knowing its type.");
+		return instanceType.create();
+	}
 }
 
 /**
diff --git a/test/poodinis/registrationtest.d b/test/poodinis/registrationtest.d
index bd701a0..1fcd2f3 100644
--- a/test/poodinis/registrationtest.d
+++ b/test/poodinis/registrationtest.d
@@ -14,7 +14,9 @@ version(unittest) {
 
 	interface TestInterface {}
 
-	class TestImplementation : TestInterface {}
+	class TestImplementation : TestInterface {
+		public string someContent = "";
+	}
 
 	// Test getting instance without scope defined throws exception
 	unittest {
@@ -103,4 +105,19 @@ version(unittest) {
 		assert(instance is existingInstance, "Created factory instance is not the existing instance");
 	}
 
+	// Test creating instance using custom factory method
+	unittest {
+		Object factoryMethod() {
+			auto instance = new TestImplementation();
+			instance.someContent = "Ducks!";
+			return instance;
+		}
+
+		auto factory = new InstanceFactory(null, CreatesSingleton.yes, null, &factoryMethod);
+		auto instance = cast(TestImplementation) factory.getInstance();
+
+		assert(instance !is null, "No instance was created by factory or could not be cast to expected type");
+		assert(instance.someContent == "Ducks!");
+	}
+
 }