Help convert this delegate to an anonymous method or lambda

public void FakeSaveWithMessage(Transaction t) {
		t.Message = "I drink goats blood";
	}
	public delegate void FakeSave(Transaction t);
	public void SampleTestFunction() {
		...
		Expect.Call(delegate { _dao.Save(t); }).Do(new FakeSave(FakeSaveWithMessage));
		...
	}

Expect.Call(delegate { _dao.Save(t); }).Do(delegate(Transaction t2) { t2.Message = "I drink goats blood"; });

Expect.Call(delegate { _dao.Save(t); }).Do(delegate { t.Message = "I drink goats blood"; });

public delegate void FakeSave(Transaction t);
...
Expect.Call(delegate { _dao.Save(t); }).Do( new FakeSave(delegate(Transaction t2) { t.Message = expected_msg; }));

private void MyMethod()
{
}

1) Delegate d = delegate() { };                       // Cannot convert anonymous method to type ‘System.Delegate’ because it is not a delegate type
2) Delegate d2 = MyMethod;                         // Cannot convert method group ‘MyMethod’ to non-delegate type ‘System.Delegate’
3) Delegate d3 = (WaitCallback)MyMethod;   // No overload for ‘MyMethod’ matches delegate ‘System.Threading.WaitCallback’

4) Delegate d4 = (MethodInvoker)MyMethod;  // Works because we cast to a delegate type of the same signature.
5) Delegate d5 = (Action)delegate { };              // Works for same reason as d4.
6) Action d6 = MyMethod;                                // Delegate inference at work here. New Action delegate is created and assigned.

Expect.Call(delegate { _dao.Save(t); }).Do(new EventHandler(delegate(Transaction t2) { t2.CheckInInfo.CheckInMessage = "I drink goats blood"; }));

public delegate void UnitTestingDelegate<T>(T thing);

Expect.Call(delegate { _dao.Save(t); }).Do((Delegate)delegate { t.Message = "I drink goats blood"; });