[swastik]

I would create a (maybe more than one, if I have that kind of time) wordpress plugin/theme (or any other app that has some value) if I have those skills and sell the entire plugin on a site like, say, Flippa. It would be easier and quicker than selling the plugin itself, and you will get the extra $1000-2000 within that time.

That's the simplest way to go about. You can create anything that has a high perceived value—web apps, iOS apps, etc. all count—and sell it. The key is the high perceived value.