Для умников и умниц 2

Физические игрушки (видео):

http://www.youtube.com/watch?v=V2NT9UHuf00&feature=related

http://www.youtube.com/watch?v=Y0cRvkOAHoA&feature=related

http://www.youtube.com/watch?v=nt29qdxViM8&feature=related

http://www.youtube.com/watch?v=0OIvTqwzN7g&feature=related

http://www.youtube.com/watch?v=v1MTPC8HFrY&feature=related

http://www.youtube.com/watch?v=zwUwz9c49tk&feature=related

http://www.youtube.com/watch?v=uROH1pUaysQ&feature=related