Second time mums: gift from baby

Second (or third, fourth etc) time mums, are you doing a "gift from baby"? I would like to do one for my son. He'll be 2y3mo when baby arrives and so has not long had his birthday, and then, of course, Christmas. So I'm at a loss of what I can do as a gift from his brother. I would love to do something like a busy box that we can get out when baby is being fed. Things I'm thinking (obviously must be usable without supervision): - his own baby (he has a doll, but its only small, so maybe get him a bigger one?) - sticker books (he has these anyway so not sure how special they'll be) - reintroducing his little toddler camera someone bought him a while ago and he was too young for (thought it'd be cute to let him capture his experience from his eyes) Other than that, I'm kknd of stumped. He has a lovely range of toys already. He's too young for me to give him free reign of his magnatiles and toys similar to that without supervision. He is into colouring and crafts but again I need to supervise him with these. Anyone had any other thoughts?