I don't know about quality, but I was researching face / ear /paw trimmer and the gets hundreds of reviews and is very cheap ($11). It's size appropriate for yorkie, has safety feature, is quiet and comes in pink or blue
The only gripes I read is that it's made for people with dainty fingers.
Amazon.com: TINY TRIM ball tipped small pet... If anyone has other alternative, I'd love to know too.