Well, the Worf sim uses a Mask. So, I downloaded it and made my own. What do you think?

http://thesims2.ea.com/exchange/search.php?searchPage=exch&search=1&asset_type=sim&key=klingon&order=RATING+desc&nrows=8&game_version=&age=&gender=&custom=&locality=&country=&view=new&x=7&y=10 There you go. There appears to be at least two seperate klingon skins there. Dont know if they are yours.

 I beleive that they are on the exchange now. Sims2.com/sims/klingons.I don't know if they are yours but they sure look familiar.