Neopets doesn't have a feature to buy paint brushes. You can only get paint brushes by:
* Winning them in games: Certain games like "Fashion Frenzy" or "Wheel of Morality" might award paint brushes as prizes.
* Getting them as a reward: Occasionally, Neopets will offer paint brushes as rewards for completing certain activities or promotions.
* Trading with other users: You can trade for paint brushes in the Trading Post, but this can be expensive and competitive.
So, while you can't directly purchase paint brushes, there are still ways to get them on Neopets!