Percussion instruments or a kid’s drum. Mine has recently also loved cars and those magnet tiles
Depending on what schemas they’re working on, like my little one is firmly in his containerising phase- anything that can be put in or taken out of something. So he’s having a great time with treasure baskets at the moment! A daytime bath or other water play. Music- pots and pans with wooden spoons is always a hit. Books- especially noisy, or lift the flap or textured ones.
An emergency foil blanket is cheap and good for scrunching. Make a ‘rain maker’ to shake with a container with a lid and dry rice. I have a storage box I fill with water and a few bath toys and she likes kneeling over it and splashing and making a mess.