Thanks very much re the eyes and the stubble! The eyes are from a tip Phillip Hatter gave me, and the stubble I tried because I thought it would work, but wasn't sure. It was a test (actually I did it first on Mojo 2.0 which happens to work well. The thread hangs when long, but when cut short, looks rigid enough.
I might try a longer bit of hair with one of them, see how that looks. Don't know if it would look too much like regular thread at a greater length, though.
As for the wig, I haven't moved up to hand-sewing anything, though that has occurred to me. I do buy the cheap wigs from party stores most times. Bono's hair was from a "Bratz" extension clip, and Farrah's hair is a Hannah Montana wig put on backwards.