Melt two cups of chocolate chips in a microwaveable bowl.
Cover a cookie sheet pan with wax paper.
Spread the melted chocolate into a thick layer on the wax paper.
Melt two cups of white chocolate chips in a microwaveable bowl.
Drizzle the melted white chocolate chips on top of the chocolate layer. Then take a utensil with a thin tip to continue making the design. I used a butter knife tip and made different strokes and designs. Continue moving the tip of your utensil back and forth until you are happy with the design.
Sprinkle a 1/2 cup of mini M&Ms over the design.
Take 6 Oreos and crush them in a bag.
Sprinkle Oreos over the bark.
Put bark in the refrigerator for a few hours until it's hardened.
Take bark out of the refrigerator and break the bark apart with your hands to get random shapes.