KPop Demon Hunters Rumi Merch: 15 picks from £7.99

Rumi's costumes are where the money goes strange on this page. Rubies list five child costumes under almost the same name, and the prices run from £16.99 for the Golden Classic in age 6+ to £26.00 for the Deluxe Golden in age 9-10. Read them slowly and you find two separate things going on. "Classic" and "Deluxe" are different versions of the outfit, and the Deluxe Golden appears in three age bands (6+, 7-8, 9-10) at three different prices, £22.92, £24.94 and £26.00. There is also a plain "Rumi Child Costume" at £24.99 with no Golden in the name. The titles do not tell you what the Deluxe adds over the Classic, so if that matters to you, compare the seller's photos and contents list before you decide. Tangsenyu's alternative is the only costume here that states a piece count, 3 pieces, and it is not sold as an official Netflix product the way the Rubies ones are.

The dolls split the same way. Mattel offer a HUNTR/X Rumi fashion doll at £29.99, a "Golden" singing doll at £35.00 and a Deluxe fashion doll at £54.99, and the £25 spread between the first and the last is not explained by anything in the titles.

For a child's room rather than dressing up, the Halantex duvet set gives its own measurements, 140 x 200 cm cover with a 70 x 90 cm pillowcase, so check those against the duvet and pillow you already have. The cheapest entry point is the BAISEBAOFU purple braid extensions at £7.99, and the Funko Rumi POP and the water bottle both sit at £12.99.