Ron did just that. He shared a tweaked version of the tools he used to create Thimbleweed Park. It's a language/interpreter called "Dinky".
I started a thread about it a while ago: Ron's Dinky
It's finished, but since Limited Run Games are using it somewhere in their Collector's Edition (probably the book), I'll hold it off for now. Once pre-orders are through, I'll add it to the thread. I've cleaned it up quite a bit and extended it with all the sources I could find: