Let me introduce you my latest animal built out of LEGO Technic - Shark Mk II. Why do I call it Mk II? It is the second generation of moving sharks that I've built so far. The first one was built out of set 9394 (red jet) 5 years ago. New shark is built out of set 42066 (blue-black jet) so it is bigger, better and finally blue. :-) It features two motorized functions: moving tail and opening maw to eat moving fish. You can turn them on separately or together with help of two red levers on stand. It contains about 900 parts and I plan to create building instructions for it - they should be done at the end of this year.
About this creation
View inside stand where is placed medium motor and battery box