Pass I

code/modules/paperwork/pen.dm

@@ -21,7 +21,7 @@
 	w_class = 1.0
 	throw_speed = 3
 	throw_range = 7
-	m_amt = 10
+	materials = list(MAT_METAL=10)
 	var/colour = "black"	//what colour the ink is!
 	pressure_resistance = 2
 

code/modules/paperwork/photography.dm

@@ -444,7 +444,7 @@
 	item_state = "videocam"
 	w_class = 2.0
 	slot_flags = SLOT_BELT
-	m_amt = 2000
+	materials = list(MAT_METAL=2000)
 	var/on = 0
 	var/obj/machinery/camera/camera
 	var/icon_on = "videocam_on"

code/modules/paperwork/stamps.dm

@@ -8,7 +8,7 @@
 	w_class = 1.0
 	throw_speed = 3
 	throw_range = 7
-	m_amt = 60
+	materials = list(MAT_METAL=60)
 	_color = "cargo"
 	pressure_resistance = 2
 	attack_verb = list("stamped")
@@ -76,7 +76,7 @@
 	name = "Nanotrasen Representative's rubber stamp"
 	icon_state = "stamp-cent"
 	_color = "centcom"
-	
+
 /obj/item/weapon/stamp/syndicate
 	name = "suspicious rubber stamp"
 	icon_state = "stamp-syndicate"