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/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"