Here's some ork nobs from my old ork army. They're modelled WYSIWYG so I can abuse wound allocation. I've run them in a few games and while a strong unit, at 365 points excluding transport they are by no means broken. They die quite readily to blast templates, missile launchers, powerfists/claws and anything else strength 8 or higher. They do however punish tau quite well as we're disadvantaged in the str 8 category.
They were pretty fun to put together and cheap - 5 AoBR nobs plus the nob box. I like unique models and making your own is always the way to go about it. My favourite is the painboy with his nursing outfit.