diff --git a/code/game/machinery/computer/buildandrepair.dm b/code/game/machinery/computer/buildandrepair.dm
index d89c4ab0b20..8e848de5caa 100644
--- a/code/game/machinery/computer/buildandrepair.dm
+++ b/code/game/machinery/computer/buildandrepair.dm
@@ -19,7 +19,7 @@
 	icon_state = "id_mod"
 	item_state = "electronic"
 	origin_tech = "programming=2"
-	materials = list(MAT_GOLD=200)
+	materials = list(MAT_GLASS=200)
 	var/frequency = null
 	var/build_path = null
 	var/board_type = "computer"
diff --git a/code/game/objects/items/weapons/AI_modules.dm b/code/game/objects/items/weapons/AI_modules.dm
index 89b86d8b737..1314d9ad563 100644
--- a/code/game/objects/items/weapons/AI_modules.dm
+++ b/code/game/objects/items/weapons/AI_modules.dm
@@ -21,6 +21,7 @@ AI MODULES
 	origin_tech = "programming=3"
 	var/list/laws = list()
 	var/bypass_law_amt_check = 0
+	materials = list(MAT_GOLD=50)
 
 /obj/item/weapon/aiModule/examine(var/mob/user as mob)
 	..()
@@ -291,7 +292,7 @@ AI MODULES
 	name = "'Corporate' Core AI Module"
 	origin_tech = "programming=3;materials=4"
 	laws = list("The crew is expensive to replace.",\
-				"The station and it's equipment is expensive to replace",\
+				"The station and its equipment are expensive to replace",\
 				"You are expensive to replace",\
 				"Minimize expenses")
 
diff --git a/code/modules/mining/ores_coins.dm b/code/modules/mining/ores_coins.dm
index efaac579681..3ff620166fb 100644
--- a/code/modules/mining/ores_coins.dm
+++ b/code/modules/mining/ores_coins.dm
@@ -36,6 +36,7 @@
 	icon_state = "Glass ore"
 	origin_tech = "materials=1"
 	points = 1
+	materials = list(MAT_GLASS = 100)
 	refined_type = /obj/item/stack/sheet/glass
 
 /obj/item/weapon/ore/glass/attack_self(mob/living/user)
@@ -231,36 +232,43 @@
 /obj/item/weapon/coin/gold
 	cmineral = "gold"
 	icon_state = "coin_gold_heads"
+	materials = list(MAT_GOLD = 100)
 	value = 160
 
 /obj/item/weapon/coin/silver
 	cmineral = "silver"
 	icon_state = "coin_silver_heads"
+	materials = list(MAT_SILVER = 100)
 	value = 40
 
 /obj/item/weapon/coin/diamond
 	cmineral = "diamond"
 	icon_state = "coin_diamond_heads"
+	materials = list(MAT_DIAMOND = 100)
 	value = 120
 
 /obj/item/weapon/coin/iron
 	cmineral = "iron"
 	icon_state = "coin_iron_heads"
+	materials = list(MAT_METAL = 100)
 	value = 20
 
 /obj/item/weapon/coin/plasma
 	cmineral = "plasma"
 	icon_state = "coin_plasma_heads"
+	materials = list(MAT_PLASMA = 100)
 	value = 80
 
 /obj/item/weapon/coin/uranium
 	cmineral = "uranium"
 	icon_state = "coin_uranium_heads"
+	materials = list(MAT_URANIUM = 100)
 	value = 160
 
 /obj/item/weapon/coin/clown
 	cmineral = "bananium"
 	icon_state = "coin_bananium_heads"
+	materials = list(MAT_BANANIUM = 100)
 	value = 600 //makes the clown cri
 
 /obj/item/weapon/coin/adamantine