Divide the vanilla pudding equally into two separate containers. Color half of it with green food coloring & color the other half with orange food coloring. In the small clear glasses, layer the chocolate pudding followed by a layer of orange & green vanilla pudding.
Top with Reese's pieces candy. Alternatively to the Reese's pieces, you could use sprinkles, crushed up Oreos, or candy corn.
Stick a wooden skewer through a couple of Halloween peeps & insert it into the parfait.