My only suggestion I currently have is to have a crate that is maybe called the Magical crate, and the whole point of it is that it is a vote key crate on steroids, say you have to type a command in chat like /redeem or /combine and it would allow you to trade maybe 20 vote keys for one of these magical keys. And obviously this is a better vote crate so maybe it would have some of the more valuable items for each server. Like maybe survival/skyblock could have some of the better mob spawners. It just can be a pain to open 20+ vote keys all at once.