Sami has really thick leather and his ears will not stand, I had shaved, taped and done just about what everyone had suggested to no avail
 
 
So I gave up trying! but maybe when he's older 

  hes now 15 months old and no difference?  they looked cute when they were taped up! I had them taped for 4 days and as soon as I took of the tape they flopped again, so what's a person to do with a floppy ear yorkie.. LOVE him just the way he is.. here is pic's before and after 
