How about other forest-dwellers? I know that GW is moving away from 'mixed' armies, but there's no reason we should. How about units of Beastmen, or Centaurs?
Or, do you remember the old Chaos Goblin Mutants? There's a Stuff of Legends page at http://www.solegends.com/citc/c27chaosgoblins.htm
- they might be fun...
:how about a cyclops?:
"Well it's Forty-one Thousand Nine Hundred Sixty-nine OK -
Gotta war across the Milky Way - "
Iggius Popiscus and the Stoogii, "41,969"