Adds a new toy to the arcade machine

Adds a pig mask which changes your speech to pigspeak, can be turned on
and off.

code/game/machinery/computer/arcade.dm

@@ -29,7 +29,8 @@
 							/obj/item/toy/minimeteor						= 2,
 							/obj/item/toy/carpplushie						= 2,
 							/obj/item/toy/foamblade							= 2,
-							/obj/item/toy/redbutton							= 2
+							/obj/item/toy/redbutton							= 2,
+							/obj/item/clothing/mask/pig						= 2
 							)
 
 /obj/machinery/computer/arcade/New()

code/modules/clothing/masks/miscellaneous.dm

@@ -49,6 +49,17 @@
 	flags = BLOCKHAIR
 	flags_inv = HIDEFACE
 	w_class = 2
+	action_button_name = "Toggle Voice Box"
+	var/voicechange = 0
+
+/obj/item/clothing/mask/pig/attack_self(mob/user)
+	voicechange = !voicechange
+	user << "<span class='notice'>You turn the voice box [voicechange ? "on" : "off"]!</span>"
+
+/obj/item/clothing/mask/pig/speechModification(message)
+	if(voicechange)
+		message = pick("Oink!","Squeeeeeeee!","Oink Oink!")
+	return message
 
 /obj/item/clothing/mask/horsehead
 	name = "horse head mask"