So, I have recently formed a guild, and with that guild, I noticed that each guild has its own guild hall as well. When I went into the guild hall however, I thought it looked rather bare. It's a cool concept, but I thought it'd be cooler if you could customize your guild hall. Some ideas for this include:

A Notice Board.
-Only Guild Masters and Officers can use this feature. When a Guild Master or Officer uses this Notice board, a message will be sent to each knight of the guild notifying them what has been written on the board.

A guild merchant.
-This vendor would sell wares to customize your guild hall, maybe spruce the place up a bit, or add expansions to it. Whether the expansions be more shops or individual rooms, who knows.

Along with the expansions and individual rooms, he could also sell furniture as well.

Honestly I thought this could be easily done, because there are some blocked off parts in the guild hall. Individual rooms could be one central "portal", but when a certain player enters it, they can choose whether to go to their room or someone's room of the guild.

Of course, with customization comes expenses. With expansions, the currency used should be energy, and with furniture, crowns would be used.