Remember the "Honor" mechanic? Let's tie it to crafting

It's been years since the honor initiative was launched, and then fell flat on its face after a month or two. Simply because there was no incentive to participate in the program. But now that Hextech Crafting has been introduced, there is now a rather reasonable reward system in place that can be used to promote the honor system without giving players enough content to make IP/RP irrelevant.

What I propose is simple; when you give any player an honor ribbon, you earn a key fragment if they earn a related crest within the next 3 days. Whenever a player earns a crest, they get a full key. Once a crest is earned, whatever criteria Riot has for earning a crest is reset - allowing a player to "re-earn" said crest and get rewarded for being a good person again.

It doesn't have to be this specifically, but it seems to me that Hextech Crafting is the perfect platform to function as an incentive for being nice.