Please do not do the grape treat you never know how many it takes to get Renal disease which there is no cure.Heck give her a little piece of chicken if you go to the SPCA.com they should have a list of foods that can kill a dog or cause many health problems.
Your dog is small you never know over time the grape being toxic to dogs may build up in the system.Good Luck with your girl.
Papbouv