Youve only got to look at my gallery to see how much use Ive got out of Ug! but Im also impressed with the work that goes into some other models which are then given away. Jedswindells ships spring to mind.  Kozs hair, of course. 
And I dont mean the most prolific. It could be the only freebie from that artist. Whats your favourite. We may get some new pointers and at least this thread isn`t about  P8.