$12256 / $11500
I love coffee.
I love it in fact so much, that I created a coffee beans brush for GIMP.
You can buy a commercial license for the ridiculous low prize of 1,50$ at DeviantArt.
If you are interested, I can submit a coffee powder brush as well.
In this post, I previously expressed concerns about relevance to freely licensed art. Here they are:
This part is not stated in the license. I could not control it anyway (how to see if a work was created with a non-pirated brush?). If there is any loss in money, by piracy, I'll need to accept it.
To sum up: The problem you pointed out, does not apply to the brush. Therefore the shown brush is relevant to the community.
If there's no restriction on what can be done with the brush, including reverse engineering it, I don't see where there's a problem. Carry on. :)