A wow present for 6 year old boy

[NotMoreBadNews]

My 6 year old boy has not asked for anything big this year but his sibling has got a big 'wow' gift so I would like to match it with something for him. Doesn't need a bike or any electronics. Loves vehicles/army play/small world toys. Help!!!

What about a hover board? Argos do a good one, we went Cornwall in summer and loads of children had them on the campsite. We got my daughter one when we got home and she loves it

I think those hoverboard things are only meant to be used on private land.

@Needmorelego yes they are for private land

Marble run is a good idea

Also:
Bruder crane (very impressive and lifts things)
Gravitrax
Roller skates

A bike or scooter

Gravitrax marble run, nice videos on YouTube. Start with a starter set. They have versions with and without battery.