Unusual Stocking filler ideas for 15 year old boy

[PollyWobbles]

Anyone got anything different that I can consider?

He has toiletries, aftershave, toothbrushes, sweets, drinks, etc etc as a daily thing and I wouldn't put these in a stocking so I'm looking for unusual and quirky things.

He's a big gamer but has a full set up including lights, funko pops, etc

Just wondered if anyone had any suggestions for me that I'd not considered

Thanks

A book of thunks is a good shout too, the one we have is from independent thinking, written by Ian Gilbert - all philosophical type questions that open discussion and debate in a lighthearted way.
‘Can you imagine a smell’ ‘does the world weigh more when it’s raining’