Changes some stuff Giacom provided input on. Thanks Aranclanos and Kaze Espada for the help.

code/game/objects/items/crayons.dm

@@ -3,10 +3,6 @@
 	colour = "#DA0000"
 	shadeColour = "#810C0C"
 	colourName = "red"
-	New()
-		..()
-		spawn(5)
-			reagents.add_reagent("redcrayonpowder", 10)
 
 
 /obj/item/toy/crayon/orange
@@ -14,10 +10,6 @@
 	colour = "#FF9300"
 	shadeColour = "#A55403"
 	colourName = "orange"
-	New()
-		..()
-		spawn(5)
-			reagents.add_reagent("orangecrayonpowder", 10)
 
 
 /obj/item/toy/crayon/yellow
@@ -25,10 +17,6 @@
 	colour = "#FFF200"
 	shadeColour = "#886422"
 	colourName = "yellow"
-	New()
-		..()
-		spawn(5)
-			reagents.add_reagent("yellowcrayonpowder", 10)
 
 
 
@@ -37,10 +25,6 @@
 	colour = "#A8E61D"
 	shadeColour = "#61840F"
 	colourName = "green"
-	New()
-		..()
-		spawn(5)
-			reagents.add_reagent("greencrayonpowder", 10)
 
 
 /obj/item/toy/crayon/blue
@@ -48,10 +32,6 @@
 	colour = "#00B7EF"
 	shadeColour = "#0082A8"
 	colourName = "blue"
-	New()
-		..()
-		spawn(5)
-			reagents.add_reagent("bluecrayonpowder", 10)
 
 
 /obj/item/toy/crayon/purple
@@ -59,10 +39,7 @@
 	colour = "#DA00FF"
 	shadeColour = "#810CFF"
 	colourName = "purple"
-	New()
-		..()
-		spawn(5)
-			reagents.add_reagent("purplecrayonpowder", 10)
+
 
 
 /obj/item/toy/crayon/mime

code/game/objects/items/toys.dm

@@ -419,7 +419,6 @@
 		return (BRUTELOSS|OXYLOSS)
 	New()
 		name = "[colourName] crayon" //Makes crayons identifiable in things like grinders
-		create_reagents(10)  //creates the reagents container with a capacity of 10
 /*
  * Snap pops
  */

code/modules/reagents/Chemistry-Machinery.dm

@@ -953,7 +953,7 @@ obj/machinery/computer/pandemic/proc/replicator_cooldown(var/waittime)
 			return 1
 	return 0
 
-/obj/machinery/reagentgrinder/proc/get_allowed_by_id(var/obj/item/weapon/grown/O)
+/obj/machinery/reagentgrinder/proc/get_allowed_by_id(var/obj/item/O)
 	for (var/i in blend_items)
 		if (istype(O, i))
 			return blend_items[i]
@@ -1098,7 +1098,8 @@ obj/machinery/computer/pandemic/proc/replicator_cooldown(var/waittime)
 		remove_object(O)
 
 
-	//Crayons
+        //Crayons
+        //With some input from aranclanos, now 30% less shoddily copypasta
 	for (var/obj/item/toy/crayon/O in holdingitems)
 		if (beaker.reagents.total_volume >= beaker.reagents.maximum_volume)
 			break
@@ -1106,15 +1107,10 @@ obj/machinery/computer/pandemic/proc/replicator_cooldown(var/waittime)
 		for (var/r_id in allowed)
 			var/space = beaker.reagents.maximum_volume - beaker.reagents.total_volume
 			var/amount = allowed[r_id]
-			if (amount == 0)
-				if (O.reagents != null && O.reagents.has_reagent(r_id))
-					beaker.reagents.add_reagent(r_id,min(O.reagents.get_reagent_amount(r_id), space))
-			else
-				beaker.reagents.add_reagent(r_id,min(amount, space))
-
-			if (beaker.reagents.total_volume >= beaker.reagents.maximum_volume)
+			beaker.reagents.add_reagent(r_id,min(amount, space))
+			if (space < amount)
 				break
-		remove_object(O)
+			remove_object(O)
 
 	//Everything else - Transfers reagents from it into beaker
 	for (var/obj/item/weapon/reagent_containers/O in holdingitems)