I've been building an art therapy sandbox upon Pavel Dobryakov's fluid sim, and I'm almost finished, and going to release on Steam, and shortly after, I'll be releasing it on GitHub fully open source.

Over the years I've used it myself and have found it very soothing, slowly adding to what it can do. Hopefully others can find it soothing and beneficial, just as I have.

You can play with it in the browser for free at http://swirltogether.com/

(semi-related, I'm seeking design / design engineer work, I'd love to be pointed in the right direction if anyone knows of a role that might fit, my email is in my profile)