Port Eris ore satchels

code/game/objects/items/weapons/storage/bags.dm

@@ -91,6 +91,12 @@
 	var/stored_ore = list()
 	var/last_update = 0
 
+/obj/item/weapon/storage/bag/ore/holding
+	name = "mining satchel of holding"
+	desc = "Like a mining satchel, but when you put your hand in, you're pretty sure you can feel time itself."
+	icon_state = "satchel_bspace"
+	max_storage_space = ITEMSIZE_COST_NORMAL * 75 // 3x
+
 /obj/item/weapon/storage/bag/ore/remove_from_storage(obj/item/W as obj, atom/new_location)
 	if(!istype(W)) return 0
 

code/modules/research/designs/bag_of_holding.dm

@@ -4,6 +4,15 @@
 	..()
 	name = "Infinite capacity storage prototype ([item_name])"
 
+/datum/design/item/boh/ore_holding
+	name = "Mining Satchel of Holding"
+	desc = "For the most tenacious miners, a bag with incomprehensible depth!"
+	id = "ore_holding"
+	req_tech = list(TECH_BLUESPACE = 2, TECH_MATERIAL = 3)
+	materials = list("gold" = 1000, "diamond" = 500, "uranium" = 250) // Less expensive since it can only hold ores
+	build_path = /obj/item/weapon/storage/bag/ore/holding
+	sort_string = "QAAAA"
+
 /datum/design/item/boh/bag_holding
 	name = "Bag of Holding"
 	desc = "Using localized pockets of bluespace this bag prototype offers incredible storage capacity with the contents weighting nothing. It's a shame the bag itself is pretty heavy."