OHH
Kingston: small bonsai, it becomes a hobby bc he likes having sth that's not-dead but also not super interactive to look after

Mira: Rare books, first edition, not for reading, if they're signed by the author all the more....
Ruth: pretty rocks, after she starts dating Lindow she collects unusual rocks bc they remind her of him and she'll being them to him to check if any of them are actually special QWQ (they're not, they're only special bc of sentimental value lol)