As a teacher I've always loved the heartfelt messages way more than a box of chocolate or soap.
I keep them. Seriously I do. The cards that are homemade with a message in it that is personal is a hit with me.
However. .some best gifts have been coffee vouchers or movie vouchers.
Most teachers love stationery. (Generalisation I know). But I've received pens and cute desk things (paperclip flowers. .notebooks...etc etc. )
Love that stuff.
On another note it never occurred to me to get the daycare educators a present last Christmas! 😨 oops.