What about colouring? We have a little table and chair set up with loads of crayons etc and lots of print outs from colouring places online of his current favourite characters. It keeps our boy very busy!
Magna tiles are a big hit for us! X
My 3 year old loves building train tracks and playing with trains and cars. He likes 'cleaning' his toys in water could use the baby bath for her to clean her toys? He likes that foamy mouldable soap you get in a can. A bubble machine. He also loves helping with his new sibling but I get that's not a toy. Play doh, cutting skills with toddler scissors, watching CBeebies/ YouTube kids 😄
Magnatiles
Does she have a play kitchen with pots, pans, food etc? Our daughter loves playing cafes. She also has a dolly and pram which she loves to just potter around the house/garden with and chats away to her. Also following for other suggestions as I’m due with our second in September and wondering how we are going to get through winter 😅