Holiday gift to creche care providers

No .... up to you reallly.
Not chocolates.
Not flowers.
Something small like Club or Immo voucher, 5 euro?
An end of year present might be better.
Remember there are often several members of staff, so are you going to buy for all of them or just one you see? If you do the latter, you might end up giving them a gift yet another member of staff in fact may spend more time with your child, but their hours are such, they arrive after you have dropped off and leave before you arrive, so you never see them, they members of staff are often quite forgotten by parents.