[Wylie's Mom]

Here are some resources for learning how to tape a yorkie's ears so that they stand erect.

Method One is using Dr. Scholl's Moleskin (available in any store where they sell shoe pads):

You have to cut out a piece that is almost as large as the inside of your dog's ear flap, peel off the backing and fit the adhesive side against the inside of the shaved/clean ear. You can use a little medical tape to further secure the moleskin pad, and leave this set in for about 3 days - then take it down, and see how the ear does; if needed, repeat for another 3-5 days.

Method Two, from here, and please see pictures from the site, attached below:

It's perfectly normal for the ears to droop during teething. However, the thickness of the ears is in the breeding and if they are too thick, they may not come up. The ears should be trimmed on the edge about halfway down each side, then use a clipper (the Wahl clipper is available in your local Payless or other drug store, the kind that is used to trim the hair on the back of the neck) with a surgical blade, about halfway down front and back of each ear. This is usually started at about four weeks but if your puppy's ears are still not up, you must take off the hair, massage them regularly, say once a day, to keep the circulation going and tape them as shown.
A dental absorber is a good post...wrap some aerated Johnson & Johnson tape backwards so the sticky side is out and insert on the base of the ear as support and wrap more aerated tape as shown.

Then tape a bridge between the ears with 3/4" 3M filament tape to hold them up, being careful they are in a natural position.

You can keep the ears taped for a week, but then even if they haven't come loose, you must remove them and make sure the pups ears are dry and clean. Whether they are up or not, leave them alone for a day or two. Retape them if they fall again.
Smell the ear and if there is an odor, you may want to ask your veterinarian for some Tresaderm. An odor could mean an ear infection and if the ear is odorous or looks swollen, don't re-tape until you've corrected the situation or seen a Vet.

If you are taping the ears on a litter of pups, please do separate those pups before you do any taping. This is very important anyway as pups can "bully" each other and those little needle teeth can be very painful. Separating your pups at 7 weeks with a divider gives them a chance to develop their own personality plus it encourages them to start "bonding" with humans rather than become a "pack animal."