I personally think there should be a guild vault of some kind where you can deposit either heroes or food and iron, possibly even items and summon tokens?
It would be nice to share the things us higher level ones have with the lower levels for the guild.
You could do gift access so that only elder or above can send the items they require to them so they don’t just take all of it and leave? Either that or there be a request X items and an endler or above have to authorise it?
Just made me think after playing MMO’s it’s a nifty feature that would benefit this game on a smaller scale!
On a side note, if this was implemented they could add guild wars treasures that get sent only to the guild vault which can be shared with the guild that can only be obtained from guild events? It’s something that could be built upon.