More of a suggestion, how about some mushroom people? Why I ask is coz im really into snotlings for my WFB orc and gobbos, and ive started to make a lot of madcap mushroom types including ones with faces and limbs etc, and put one or two per base on to vary them (as well as detrius and junk etc) My intention is to make a entire snotling army (using 10mm and 15mm goblin types, as well as a few GW snots (not too many as they are VERY EXPENSIVE!)
I also reckon they would be great as a troop type (substituting them as gobbos in 10mm scale) armed with spears, clubs, throwing spores, catapults, or indeed any suitable weaponry.
I for sure would get shed loads of the little blighters!!

Mario style mushroom folk "Toad" would be most welcome!! failing that, evil nasty little buggers would do!!
http://www.mariowiki.com/Toad