I'll start with Danny Darwin as an example. The left-hand one is in the Complete Universe facegen pack and is waiting on improvement. But if I can save FancySkunk some time and he can grab mine in this thread (assuming he wants to) - he saves himself time the next time he's doing a big update. It also saves a request coming in. That's the spirit behind this. Here's some I already did, take 'em if you like...
As an aside, even if I can't find the exact photo I used, I'll try to post a picture of the player regardless for reference.