Can a 3d container be modified to a different shape

[bravid2001]

Hello,

I have a 3d container with emitter. The container is a cube. Can I modify it so it's a different shape? I need the bottom of the cube to be at a slight angle so when the emitted particles hit the bottom of the container, they roll down slightly.

I'm using Maya 2008.

Thanks. 

[bravid2001]

Ahhh, I just found the make collide button. That solves my problems.