I do a Xmas Eve box for my daughter, she’s nearly 8 now; in there I put some small fidget toys, a small wooden game, colouring & pencils, a Santa key, reindeer food, some small reading books, a Terry’s Chocolate orange - her favourite chocolate, an invite to a Xmas movie of her choice on the sofa with me with her choice of snacks & a couple of other small items.
These things usually keep her busy on Xmas Eve but she also goes back to them between Xmas day & going back to school in January.
The box then goes away again for the next Xmas Eve.