Gold
Harry followed the goblin through the halls until they came to a stop at a very intricate door with vines and gold plating with a mahogany old fashioned door handle, there were windows with multiple panes with stained glass depicting some goblin healing another while in the middle of a war.
"Sir?" Harry called to grab the goblin's attention, "Is this all made by goblins?" the goblin nodded.
"Yes, everything that is in this bank is made by us."
"Well, if you see the goblin who made this, tell them I said good job and that I'd like to hire them for some artwork like this" Harry smiled and gestured
for the goblin to lead the way into the room.
The goblin opened the door, Harry peaked his head into the room and seen a handful of goblins all standing in a circle waiting. He fully stepped into the room and paused, "Hello? May I ask what you are doing today?"
A goblin taller than the rest stepped forward "Today we will remove any and all blocks on you along with glamours and anything else."
Harry smiled, "Thank you sir, now what would you like me to do?" the goblin pointed him to strip and put on a white gown then lay down.