Haha, awesome! I did the EXACT same thing with Splinter. Was actually bummed when it wasn't setup that way. I have mine all boxed up atm though getting ready to move into a new MUCH larger house (complete with my own private nerdatorium mwahahahaha). Also, that extra ninja is Dogpound pre-ooze. Too bad he didn't come with his Chuck Norris hair cut.
(With mask)
(Without)