You can duplicate the objects involved in a collision effect. For example, if you make particles collide with a surface, you can duplicate the particles, surface, and collision effect.

To duplicate the collision effect:

1. Select the particle object and geometry involved in the collision.
2. Select Edit > Duplicate Special > to display the Duplicate Special options window.
3. In the Duplicate Special options window, turn on Duplicate Input Graph and click Duplicate Special.
4. Move the objects to a new location as desired.