I know you don't give presents in order to receive effusive "thank you's", but surely thank you's are polite?
There is a headcount of 15 staff working on my dd's floor (there is the baby room and adjacent to it the 1-2's room where my daughter is cared for). I felt that I wanted to get something for all 15 because the baby room staff sometimes cross cover in the toddler section...so rather rashly (without thinking of the cost implications)I bought 15 bottles of 'potions' from the body shop (cost me a fortune!!)
A week or so ago I passed on these 15 individually wrapped items to the Day Nursery Manager to give to the staff. Since then - not a dicky bird. No word of thanks from any of the staff. I don't expect them to throw themselves at my feet and demonstrate undying gratitude - but a simple acknowledgement would have been nice.
Next year they'll be lucky if they get a bar of Aero to share!