Concise description:
This would be an extra tab in the store. Once their, you would have a list of all the stars, and boxes beside them that you could input the number of stars that you wanted to exchange. At the bottom of the page, there would be a function that told you how many credits you would get for the stars being exchanged, and a button that says "Exchange Stars."

Specifics/Details:
The value of each star would have to be less than it's retail in the store, maybe half. This would make 5 drab or auburn stars worth one credit, 1 orange star worth 5 credits, etc. Those who would use this feature would obviously be trading their stars at a huge loss, but if it is the only way to get this function implemented, I would be willing to take the hit.
How this will benefit the site:
- This will allow members that do not want to risk points in tournaments, or Freemiums who can't join tournaments to use their Stars.
- This will allow a Star exchange method as well. You could turn in a bunch of violet stars, and get a couple orange stars that you might need.
- I believe that there have been many complaints regarding this topic, and I think that this would fix the problem.