Fixes stack creation logic and return value

code/game/objects/items/stacks/stack.dm

@@ -137,6 +137,7 @@
 		if (istype(O, /obj/item/stack))
 			var/obj/item/stack/S = O
 			S.amount = produced
+			S.add_to_stacks(user)
 
 		if (istype(O, /obj/item/weapon/storage)) //BubbleWrap - so newly formed boxes are empty
 			for (var/obj/item/I in O)
@@ -284,13 +285,13 @@
 		return
 	return max_amount
 
-/obj/item/stack/proc/add_to_stacks(mob/usr as mob)
-	for (var/obj/item/stack/item in usr.loc)
+/obj/item/stack/proc/add_to_stacks(mob/user as mob)
+	for (var/obj/item/stack/item in user.loc)
 		if (item==src)
 			continue
 		var/transfer = src.transfer_to(item)
 		if (transfer)
-			usr << "You add a new [item.singular_name] to the stack. It now contains [item.amount] [item.singular_name]\s."
+			user << "<span class='notice'>You add a new [item.singular_name] to the stack. It now contains [item.amount] [item.singular_name]\s.</span>"
 		if(!amount)
 			break
 

code/modules/materials/material_sheets.dm

@@ -45,7 +45,7 @@
 /obj/item/stack/material/proc/update_strings()
 	// Update from material datum.
 	singular_name = material.sheet_singular_name
-	
+
 	if(amount>1)
 		name = "[material.use_name] [material.sheet_plural_name]"
 		desc = "A stack of [material.use_name] [material.sheet_plural_name]."
@@ -64,9 +64,10 @@
 	var/obj/item/stack/material/M = S
 	if(!istype(M) || material.name != M.material.name)
 		return 0
-	..(S,tamount,1)
+	var/transfer = ..(S,tamount,1)
 	if(src) update_strings()
 	if(M) M.update_strings()
+	return transfer
 
 /obj/item/stack/material/attack_self(var/mob/user)
 	if(!material.build_windows(user, src))

code/modules/materials/materials.dm

@@ -128,8 +128,6 @@ var/list/name_to_material
 	var/obj/item/stack/S = new rod_product(get_turf(user))
 	S.add_fingerprint(user)
 	S.add_to_stacks(user)
-	if(!(user.l_hand && user.r_hand))
-		user.put_in_hands(S)
 
 /material/proc/build_wired_product(var/mob/user, var/obj/item/stack/used_stack, var/obj/item/stack/target_stack)
 	if(!wire_product)