I have
WIP tombstalker.
The model looks daunting at first but it isn't. The components are 100% poseable so you can end up w/ all sorts of configurations. Each segment can be moved left/right up down to give life. Each leg is composed of 3 parts. A ball and socket into the body segment, then 2 elbow joints for posing as well. This give you the ability to simulate the movement of a real centipede.
I've pose mine as it is rearing up to attack. I'd love to get a second and have it crawling over a tank. A third idea would be to take 1 model and 2 bases... have one burrowing using the tail sections and use the other to simulate one popping out of the ground. It is an excellent model that I highly recommend.