15 month old toys

Mi
Hi ladies! My son has recently started getting a little bored in his nursery and I'm wondering what toys your kids are into recently. I've noticed he likes puzzles and figuring things out, and I would like to get some smaller toys because his current favorites are HUUUUGE so I can't really take them with us.
He likes:
- Tunnels
- This Vtech activity cube that teaches letters and colors
- Balls and any activity with balls
- Anything he can physically climb on or ride
- Books that sing or talk