I do too, that dark green one? Why's it called a rattlesnake plant, I wonder?
I think I read that the wavy leaves look like snake rattles? I might be making that up. The underside is purple and they close their leaves up at night.
In Post #407, the 2nd pic down, the dark green plant on the far left, what's that? The rattlesnake is in another picture, it's striped.
In the bathtub? Peace lily.