I've seen that they come in several colors! But, I mean, since they're all from the same original plant, they should all be pink... if one of them comes out a different color that'd be somewhat shocking!
I wouldn't know where to go to get another of them anyway, even if I did want another color! There aren't many nurseries in my area at all.
The arrangement came with three plants when I first got it, the other two were what I *think* were a peace lily and the other, a maidenhair fern. The poor fern didn't stand any chance at all... the lily is dragging on but it's a bare shadow of its former self, I'm really not sure at all it's going to make it. Sadly I had no experience with lilies, and consequently, did everything exactly wrong and I think it's too late now. Sort of why I've got all my hopes on the kalanchoe (which seems to be a much hardier plant!).