Hi,
When I got my Lexy at 8 weeks old her ears were down. I then shaved them and taped them with surgical tape. I put each end of one ear together and taped it then the other. I then took masking tape because it was sturdier and placed it on top so there was a bar between both ears it only took 3 days and once I took the tape off they were sticking straight up.
I have sent you 3 pictures one at 8 weeks, one at 12 weeks and one at a year old which was last week on the 4th of April. This really works and Lexy is there to prove it. At first she felt uncomfortable but they are puppies and she was just fine with it.