Present for 9 yo boy

[Almahart]

What can I get a 9 year old who’s into gaming and football - budget c£15

I’d like to get something like a Rubik’s cube or lava lamp but for various reasons neither of those are quite right

Help!

Science kit.
Spy/code breaking game.

My go to present for 9 year olds at the moment is personalised water bottles. Their name and in this case a football picture. They've gone down well with both boys and girls

This looks quite handy:
www.wickeduncle.co.uk/presents/boys/age-9/footy---create-and-play-football

Am considering it as Xmas present for football-obsessed 11yr old, so he can take it anywhere for a kickabout!