As you may or may not know Riot have suggested that there might be rewards for being bronze, silver, gold or platinum ranked when season one ends.
Here is part of the official post.
If youre still interested in capturing a little bit of glory from our first competitive season, however, the ladder season is being extended. We will announce the completion date for ladder competition in the coming weeks, along with the details on rewards on the ranked ladders for our platinum, gold, silver, and bronze placement winners. Once ladder competition has been resolved, we will officially end Season One.
In addition to these great rewards for our competitive ladder champions, upon the completion of the season we will be giving everyone who participated something special. So we have decided to issue each and every summoner that played at least 10 games over the course of Season One in any game mode a special, commemorative skin for Kayle, the Judicator, to thank for helping to make the our first competitive season such a smashing success.
Or if you have a suggestion for what you want the reward to be. Hopefully this thread will get the attention of a few reds.