Line the 9 X 9 dish with Parchment paper. Place the chocolate graham cracker crumbs evenly in the bottom of the dish, on the parchment paper. optional: you can use regular graham crackers too.
Add the Unicorn chips, and the milk chocolate chips, and spread evenly in the dish.
Place water in a small dish, and place the colored sugars of your choice in small containers.
Dip the marshmallows in water, one at a time, and then in the colored sugars, and place them in the dish, on top of the chips, in rows. (see photo)
When the dish is lined with the marshmallows, place it in the oven on 350 degrees for approximately 15 minutes, or until the marshmallows begin to turn golden brown, and melt a little.
Remove the dish from the oven, and serve immediately with Graham Crackers for dipping. Enjoy!