I just wish we could have a way to "buy" ninja frags from other players (you can't "dismember" a ninja already unlocked, so only the spare frags will be moved). The buyer pays in ingots and the receiver gets the equivalent (or like 75% of that value) in coupons. There would be a minimum of 100 ingots/frag.

Something like what we have for summon chakra in the group.