Bluespace Crackers (#16062)

* Bluespace Crackers

Added a bluespace cracker item. It works similarly to a normal cracker, in that one person offers it to another to pull the cracker together. When pulled, the winner is rewarded with a toy, a joke, a cheap paper hat and a powerful bluespace effect!

The effects include:
Shrinking to 25% scale
Growing to 200% scale
Having a drug like effect colour their screen.
Making them invisible for one minute.
Knocking them over.
Teleporting them into the losers active belly (if prefs allow!)
Or giving them a bunch of money.

They can be found in the bluespace random item pool and rarely as an item in maint!

* Colourful hats

Added random colours to the paper crown hats

* Added the crackers and backfiring sizegun to trash piles

* Can be rigged by VV now

code/game/objects/structures/trash_pile_vr.dm

@@ -281,6 +281,7 @@
 					prob(4);/obj/item/weapon/gun/energy/sizegun,
 					prob(4);/obj/item/device/slow_sizegun,
 					prob(4);/obj/item/clothing/accessory/collar/shock/bluespace,
+					prob(3);/obj/item/weapon/cracker,
 					prob(3);/obj/item/weapon/material/butterfly,
 					prob(3);/obj/item/weapon/material/butterfly/switchblade,
 					prob(3);/obj/item/clothing/gloves/knuckledusters,
@@ -313,7 +314,8 @@
 					prob(1);/obj/item/device/perfect_tele/one_beacon,
 					prob(1);/obj/item/clothing/gloves/bluespace,
 					prob(1);/obj/item/weapon/gun/energy/mouseray,
-					prob(1);/obj/item/clothing/accessory/collar/shock/bluespace/modified)
+					prob(1);/obj/item/clothing/accessory/collar/shock/bluespace/modified,
+					prob(1);/obj/item/weapon/gun/energy/sizegun/backfire)
 
 	var/obj/item/I = new path()
 	return I