since we aren't nerfing the absurd gold gen Coin has
how about we bump up the other two by letting them get their bonus gold passives on kills and assists just like Coin does?
grants the _ base _ cannon minion gold value (45) and partially restores the passive shield if you've finished the quest(like it does when you execute a minion)
gives 3 charges' worth of gold and gives you some movement speed if you've finished the quest
Or we could just unify the gold gain across all 3 items and say you get 40 bonus gold for takedowns, with each item then giving its own unique effect after that
bot lane with those items