Champion Skin Icons
What if champion skins came with a Summoner's Icon, or changed your in-game champion's icon like Spirit Guard Udyr? There would be an option to disable Champion Skin Icons (disabled by default), but if you feel familiar enough with certain champions and their skins, you would have the option to enable it.
I'd be all aboard for it. It would make skins just a little bit more valuable to me. And from what I've heard, a set of Summoner Icons that reflect life time RP purchases may be in our future.