Teacup is often used to describe "toy" size dogs (toy is used by dog shows to describe the group), but teacup is a controversial marketing word in the Yorkie world. Technically, there are no teacup Yorkies. The 'standard' set by the Yorkshire Terrier Club of America is under 7 pounds.
You will find Yorkies of all size here on Yorkie Talk. My boys are larger than standard.
Regarding the honey (or Karo syrup and Nutrical which are more generally used), it is for when a dog is in trouble with a possible hypoglycemia attack. If it is given freely and used as a preventative, then it causes sugar levels to spike and fall. When something like this is used, it should be followed up with a protein.
I would ditch the honey water. He needs to learn how to drink regular water.
Make sure you take your pup to the vet for a wellness check if you have not already. Great way to establish a relationship with a vet and follow up on necessary puppy vaccinations. Another big topic that you can find info on in the YT library here.