Once butter is melted, add vanilla and 6 cups of marshmallows. Melt the marshmallows slowly.
Right before the marshmallows are fully melted, add milk and the other 2 cups of marshmallows. Stir until the added marshmallows are starting to melt. (we don't want them fully melt so you will have a lumpy fluff)
Add the Rice Krispie Cereal. Stir until the cereal is fully coated with the marshmallow fluff.
Dump into an 9 x 13 greased dish. Use a greased spatula to spread out the treats and press down just a bit (you don't want them to so compacted that they become rock hard).
Allow to fully cool before cutting.
Using the Poke ball cookie cutter, use it as a guide to cut the circles out.
Melt the black candy melts according to your instructions and place it in a piping bag.
Using the cookie cutter (like explained in the post) draw the lines on the treats.
Add the circle in the middle connecting the lines.
Melt the red candy melts and place in a piping bag.
Fill the in the half circle area above the black lines.
Melt the white candy melts and place in a piping bag.
Fill in the middle circle and the half circle under the black lines.