I've decided to utilize CodeMill to offer $30 to anyone who will add this feature to aterrien/jQuery-Knob:

I'd like to use the wonderful JQuery Knob as a range input. I want to render a knob where users are able to mark two points on the knob: a start of a range and an end of a range, and have the knob able to provide the data when I need it, e.g. on form submission.

To clarify with an example, let's say this range knob is going to be used in a weather app, where the user wants to be alerted on winds coming from a certain direction, for example S-SW wind, where the range is 180-225. So he needs to mark a range starting at 180 degrees and ending at 225 degrees.

In order to develop this and earn $30, please proceed to the task page at CodeMill.

The work will be done on my own fork, and when it's finished I will send a pull request to aterrien/jQuery-Knob so the entire community can enjoy this feature. This will be my contribution.