My Baby Banana Split had one lazy ear too. It was up but the tip flopped over. The vet told me to tape them both up so I watch a video on Yorkie ear taping and did it. We left the tape on for two days and then took it of for 24 hrs and then re- taped them for four more days. She still has them taped up now.
Take a look at the albums in my profile there is several pictures there.
I do have to say that after the first two days and taking the tape off for 24 hrs her ears were much perkier. Lets see what this next time brings in a few more days. I will be sure to post new pics of her ears when the tape is off.