My dd is 10, she really likes jewellery. I got some nice things in claires 3 for £5 sale. A star sign necklace, chokers and earrings. Also hair clips (big ones to put her whole hair up rather than little ones)
She also loves her fake oodie from primark (ladies XS-S), fleece blankets and hot water bottle.
In smiggle she really liked the drinks bottles and Harry potter range they've just released. In store sale stuff was an extra 30% off and full price 20% off.
She really likes crystals, I got her a mystery box from etsy then a book about them. If you get tumble stones you can buy cage necklaces to put different crystals in.
Her 10th birthday, fuse beads were a massive hit, she ended up running out so spent some birthday money buying more! They are like hama beads but cheaper I got them from amazon.
I also made her up a jewellery making set with beads, elastic and a bag to keep it in all from shein.
My eldest daughter really enjoyed drawing, she had a how to draw manga book with skin tone colouring pencils which got alot of use at that age.
Both like board games too. We mostly get these from charity shops though so have quite a random selection!