Fuck stopping. Steal it all. Take it and enjoy it without her getting anything. Reclaim the art. Make it your own. Piss her off with fanfic and fan art based on things stolen from her.
I got the recommendation for Kaleidoscopic Grangers from a similar thread a few months ago and really enjoyed reading it. It's about a trans and blind HP navigating her adolescense while having the backing of the Granger family and was written explicitely to spite Rowling. And she certainly wont get royalties from you reading that :)
harry's a worthless piece of shit who failed upwards and got bailed out by better people at every turn. why in the hell would the trust-fund-jock-turned-cop be helping a downtrodden minority? they hate those in the world of hp, he didn't have jack shit for his best friend's family, hell he kept a slave. fuck harry potter, he's the worst hero ever.