I don't think the wingnut is ugly at all. It's easily my joint favourite clack, along with the red translucent. In fact I would go so far as to say that I like it more than the red translucent.
I agree.  I have grown up in the garage working on bikes/cars/boats and I think it is awesome.  Still love the skulls, but the detail on this one is awesome.  
WUT?!!  C'mon guys.  I am #1 Clack fan on the planet.  And I'm telling you the wingnut is not an attractive Clack.  
Every one of the Clacks below are far better looking, and this is a pretty ordinary group of Clacks:

Also the detail on the new Gumrot is more impressive than the wingnut.  And the triple shot molding of the 420's is more impressive in terms of manufacturing savoir faire.
I would love to have a wingnut, lasers be willing, so don't get me wrong.  But I'm not afraid to say it's not a good looking Clack.