Stocking fillers for children?

[ToffeePennie]

I have a 12 year old son (call him John) and a 9 year old son (call him Elliott), they have already requested their gifts off Santa. (An electric blanket each & theatre tickets which is no issue)
However, I’m struggling with their stockings. Obviously they can only be small items but beyond both of them having a fidget toy and John getting some erasable pens that he likes to use for school (he’s autistic and struggles with normal biros) I’m stuck.
Neither of my kids are particularly bothered by “toys” any longer and due to SEN needs neither one really reads books (they listen to audio books on Alexa instead) we always put a banana, orange and an apple, plus chocolate coins, but I’m struggling for anything else to add to their stockings!
Any suggestions? We usually try to match them so they have similar gifts off Santa for their stockings.

have a 12 year old son (call him John) and a 9 year old son (call him Elliott),

can I call them Jacob and Harry?

Whatever you like, but I just need some ideas about what to put in their stockings!!

Note pads
Erasers
Novelty Pencil sharpeners
Glow sticks
Mini pen torches
Colourful socks
Hobby kits if they are creative
Clip on book torches

Do they like sensory stuff, lots of squishy stuff on the market right now.

My oldest never really used most of the toys he got (autistic, love to sit and unwrap them but then doesn't really care afterwards) but when he was around 12 he really liked the chicken splat in his stocking. It was the hit of that christmas.

Both DS of mine would have things like
Socks
Card games
Keyring

For me stockings are a mix of practical & things my ds loves due to interest

DS1 at those ages (also asd) had touch screen gloves, rechargeable hand warmers, wrist warmers (didn't like feeling cold), he also had mini screwdrivers (tiny ones for PC building), trading card games, mini Frisbee, blind bags of characters he liked.

DS2 had different interests so, cook book, chopsticks, chalk for climbing, climbing tape, finger skateboards, hockey ball, lego blind bag

They basically have

5 things you can eat
5 things you can use
5 fun things
5 things to read (this includes books on c.d, magazines, comics etc...)