I"m looking for a small present for my niece (in her 20s) to go along with something else - maybe £10 or so. She apparently has recently got into adult colouring books, so would like some thicker markers for that. I don't think she is really into it yet to the level of knowing about blendable markers and all that as she hasn't been that specific, so I'm looking for something suitable that's a general marker but good quality for adult colouring books - I know lots of cheap brands bleed through or you see the lines or don't have good tips or don't last or whatever, and she's artistic enough that she would appreciate good materials. So I could either get a larger set of some sort of ordinary water based ones, or maybe a very small starter set of some blendable type (alcohol based?) perhaps? Any recommended brands or sets or shops? I don't know whether she'd prefer a small set of one colourway with different shades, or a starter pack of mixed different colours - I'm not sure what kind of books she does.
Basically ideas for anything suitable for around £10 would be helpful, thanks!