The Snail / Drop Cam
Automata are charming objects that offer entertainment in the form of mechanical movements. This page gives an introduction to the world of automata and provides links to free toys for you to build.
Nuova pagina 1
Sudden abrupt up and down movement for "yes" head shake
If you've seen these great "street" art pieces and were wondering how the artist did them, here you go :)
017 Skolverkets nya betygsdirektiv - YouTube
Nail & string art