Are we sure it'll take only one of each?

[Estellios]

Actually you can hold 2 at the same time.
1 on your inventory and 1 on your retainer, just like green gear / primal weapons.

You still can't hold more than 1 on your person at a time since you can't craft stuff using materials on your retainer.

Unless they get the unique tag removed at some point there is no way an item requiring more than one of these mats is possible.

[Arkista]

Unique untradeable

Dunno why it says untradeable when you can trade to players for GILZ!

[Truvy]

So if i make every +1 Relic weapon in the game I can make a chair out of them like Game of Thrones?

[Starfox71rt]

Could always be that the item crafted from these mats is not Unique and therefore you need multiple but can only have one at a time. That would be a pain in the butt but it is possible.

[Mythrella]

So if i make every +1 Relic weapon in the game I can make a chair out of them like Game of Thrones?

Yes, and they will all retain their glow. So it'll be a glowy rainbow throne ♥

[RavenL]

Dunno why it says untradeable when you can trade to players for GILZ!

It's unsellable, not untradeable which means you can't sell it on the market but you can to other players via the trade option thingy.

[Delsus]

Actually you can hold 2 at the same time.
1 on your inventory and 1 on your retainer, just like green gear / primal weapons.

Still when crafting only one can be used (the one on your person) but it's highly likely other items will be needed as well.

[Kal-El]

Still when crafting only one can be used (the one on your person) but it's highly likely other items will be needed as well.

So craft one item. Then take another horn out your inventory and craft something else?

[AunaYuuki]

Not sure but there is also an ADS Frame to go along with the ADS plate. You can only hold 2 if one is on your retainer. So, i'd assume it would only take 1 of them item to get the furniture.

[Delsus]

So craft one item. Then take another horn out your inventory and craft something else?

Which whilst is designed I highly doubt SE would do, unless you need so many horns from members of the FC, rather than use 20 retainers to store horns (Yes I know this is impossible.)