Field Grenade Nuke

One day I made a Sphere ....... then I sliced it into segments ...... then I decided to etch designs into its surface ...... That's where it started and I kept playing with it until this came out. I have an animation of it, as an AVI made in 3DS Max, starting from the open position and then each section closes in succession until the spikes are sticking out. The thought is that it would be activated and then thrown, closing by the time it reached its target, which it would stick into.