Penta Skins
Someone back me on this: There should be skins you can ONLY get if you Penta with a champion. A skin for every champion that you CANNOT buy. One skin for a Penta on the Rift and one for ARAM. (Hex-game Pentas should not count) and they should be the most bad ass skins ever.
Also, any character you've Penta-ed with, should be grandfathered in.
Please, lend me your thoughts on this. I think it would be easy for Riot to introduce. This idea would also give summoners a feeling of reward much more than anything else Riot is offering.
Thanks all.