Asteroids: My collection of completed walls for the border of the playing field - the asteroids bounce off of this. http://www.boardgamegeek.com/image/351481 Asteroids: http://www.boardgamegeek.com/image/95626 Asteroids: different Sizes of Asteroid http://www.boardgamegeek.com/image/95620 Asteroids: Asteroids http://www.boardgamegeek.com/image/95613