You can never have enough best teacher mugs, trust me! I like getting personal things, shows they have been listening to my inane drivel
My Dds make a decoration each ( yellowmoon/ baker Ross is your friend there) and then I get something edible or pretty tot go with it. At Easter, they get a nice mug with an egg in it, and in the summer, we make up a little gift bag containing relaxing things.
My favourite gifts have been a little Christmas cake made and decorated by a mum, and a gorgeous little photo frame, made by a child.