Here is another cool kinetic sculpture that you can make using LEGO pieces. The Bat is a LEGO kinetic sculpture of a fruit bat. It is motorized model that reproduces the wing motion of a bat. The wings are made with LEGO flex tube for the most part. The stand moves the entire body up and down.
The Bat flaps its wing, expands and contracts them. This video has more info on how you can build your own. Pretty cool, don’t you think?