Maybe with Vantity Points you can buy something in the Shop, and have got 10% Chance to get not the same. You can upgrade these to Level 10 (100% Chance to get nothing same again), but then for much Vantity Points, would be a nicer Idea. I think...
Then Points,Please do note, this is not the vanity point we are talking about (Not the one that ranks gets per weeks? or months/ blah)