Gift idea for Nursery staff

Hiya! my little one is starting pre-school and leaving the nursery he’s been for the last 3 years… Feeling a little emotional. Whats the best gift idea for the staff. I already got a Thank you card with a note. What else can I get? (besides a box of chocs) Also key workers keeps on changing so i have no idea. i think it would be better to give a combined thing or something for the nursery