League of Legends Skin Contest - FREE
Get 1 from 250 codes for League of Legends skin (Riot Nasus and others) every 2 weeks 
Take part in draw and wait for results. When the number on applications exceed 40 organisers will send email with code to winner. After that it will be repeated every 2 weeks and so on.
All information and rules can be found on contest page link below:
Link : WEBSITE