First off: I haven't played yet, was supposed to this weekend, but my rulebook didn't come in. But my wife, twisted gamer that she is, came up with two ideas for a new troop for the Neverborn.
Suicide Bears: Yes stolen from the idea of suicide bombers. Small teddy bears that charge, grab on, and explode. To balance them out I'd say limit their number per group. Second, give them a good chance of exploding if hit by a ranged attack.
Swarm Bears: Small teddy bears, (4-5 on a base) armed with knives, that charge an attacker. I'd say, each wound / hit point they suffer removes one bear.
Anyway these are just thoughts. I hope you all like them,