Line a 9x13 pan with two sheets of parchment paper.

In a dutch oven, melt butter on medium heat. Add 8 cups of mini marshmallows, you want to stir constantly, until melted.

Once the marshmallows are melted, add the cereal. Mix with a rubber spatula, carefully to crush all of the cereal, until all of the cereal is coated in marshmallow.

Add the remaining 2 cups of marshmallows and mix a little bit. (I like having some of the marshmallows not completely mixed in and you can see the marshmallows in the treats.)

Pour the mixture into the parchment-lined pan. I spray my hands with the nonstick cooking spray (this works better if you can have someone else spray your hands but it's not impossible to do yourself) and use my hands to press down the cereal mixture so there's an even layer.

While the treats are cooling (just about 10 minutes), start melting 2 cups of dark chocolate melting wafers and half the bag of white candy melts in the microwave in separate microwave-safe bowls using the instructions given on each bag.

Spray your cookie cutter with nonstick cooking spray (you'll probably need to do this a couple of times while cutting out the shapes) and press into the rice krispies treats until you reach the bottom of the pan with the cut. Lift the cookie cutter and carefully remove the treat from the cutter. Place on a parchment paper lined cookie sheet and repeat. I was able to cut out 16 Mickeys.

Dip each cut out shape into the chocolate or white chocolate, just about 1/8 to 1/4 inch of the way down. Lift the shape out of the chocolate and shake a little bit to remove the excess. Place back on the cookie sheet and allow the chocolate to set for a few seconds. Add sprinkles or drizzle with white or dark chocolate.

Allow the chocolate to completely set before placing in a little favor bag with washi tape or serve on a try for your next party or baby shower!