The past couple of years I have made a tree picture for the girls to add leaves for each good deed they do. I like to write on the leaf what it was the girls did or said.
Its nice because it makes me focus and recognise their good behaviour....which often gets overlooked! So from the smallest kind word to doing big actions to please Allah, it will be recorded and stuck up on the tree inshaAllah!
This year, I've made a big tree to stick up on the wall, about 1m tall from opening up a box. The kids added some glitter, and I punched heart shapes for the leaves! (thought would be cute!)