The Centipede Viby pod works best with vibrators that are powered by ordinary batteries contained in some kind of control box, usually with speed controls on it.
For example, here is a rabbit vibrator that will likely work well. A here is another.
For nipples, there is this one. And this one.
We have not tried these vibrators and are not specifically recommending them, but we present them as examples of what to look for when selecting a vibrator to use with Centipede. Keep in mind that you will to need to do a bit of modification to connect them. Specifically, you will need to cut off the battery box and install a 3.5m plug. More details about that in next post.