However, there are a few things you might be thinking of:
* Paint Brush: You can get a regular "Paint Brush" item. This allows you to change your Neopet's color using the "Paint Brush" tool in your Neopet's "Appearance" section.
* User Lookups: You can use the "User Lookups" tool on the Neopets site to search for users who have created custom Neopets with a specific color and appearance. You can then use that as inspiration for your own Neopet.
* Customizing Your Neopet: The website has a lot of tools for customizing your Neopet, including the "Paint Brush" tool, accessories, and more. You can use these tools to create a Neopet that looks like a "spirit" or has a specific color and theme.
Remember, there is no item called a "spirit paint brush" on Neopets. You can, however, use the available tools to create a Neopet that looks like a spirit or has a specific theme.