Algodoo

Save the small cross as a phunlet before starting the scene to "Use as chain" later. Ball hits the last domino in the chain. It won't work right if you collide with the first domino.

Rev A: Custom chain did not save with scene so I added a cross that you can save as a phunlet and "Use as chain" later.
Rev B: Made dominos fall faster.

Note: The cross is not available after the scene runs. Save it as a phunlet before starting the scene if you plan on "Using as chain" later.