Advent calendar for a 9 year old boy??

[Macarena1990]

Don't normally buy the fancy ones, but thought I'd make an exception this year..

Have bought 5yr old DD the Lego Friends one and will get 14 yr old DD a beauty one, but am really struggling to find something suitable for DS (9). He loves lego, but only Ninjago and isn't interested in Harry Potter, Star Wars or Hot Wheels. Grateful for any ideas! Thanks!

Would you diy one? Maybe break up a ninjago set and give him a few pieces each day. Or see if you can get a load of mini figs on eBay.

Its not hot wheels but its cars! I've purchased two!

Pokemon (Argos)
Popcorn Shed
Hot chocolate
Jelly Belly
Revell Technik RC car

My 9yo is getting the harry potter funko pop one.

Pokemon or match attax?

Can you buy one that you fill yourself, and put in packs of Panini (or whatever he prefers) stickers?