Is it possible to build a kinetic energy bomb?

I always thought the spinning nature of the dambuster bombs was first to cause them to skip the nets that prevented a submarine attack in the front of the dam and secondly to cause them to roll to the bottom of the dam so the most damage was inflicted on the dam.

It looks like you’re right, they skipped on the surface:
Big&Bouncy:TheSpecialWeaponsofBarnesWallis
The Dambusters

Commie Gerbils!
Ghodless Red East German Commie Gerbils! Wearing fluorescent Pink Weskets!

Or…something.