MIx Sugar Cookie Mix (1 package), All-Purpose Flour (2 tablespoon), Butter (1/2 cup) and Egg (1) until well combined. Scoop dough out of bowl, shaped into a round disc, then wrap in plastic wrap and refrigerate for 30 minutes.
Line a cutting board with parchment paper. Dust the paper lightly with flour. Unwrap dough and set on parchment paper. Roll out to 3/8-inch thickness. Use a pizza wheel or knife to cut out a hat shape. Refrigerate for 30 minutes.
Preheat oven to 375 degrees F (190 degrees C).
Move refrigerated cookie to baking sheet by lifting up the parchment paper and sliding it on the pan. Bake for 14-18 minutes until golden brown. Cool completely then move onto serving platter or nice cutting board.
Beat Cream Cheese (8 ounce) and Marshmallow Fluff (1 cup) until well combined. Add Whipped Topping (8 ounce) Whip frozen whipped topping and beat until fluffy. Reserve about 1/3 of this frosting for later.
Spread 2/3 of the frosting over the hat.
Slice a thin piece off each side of the Granny Smith Apple (1). Then make 4 thicker slices from each side. Cut 4 stars from the slices. Dip or brush stars in Lime Juice (1 teaspoon) to keep apples from browning.
Add Fresh Blueberries (8 ounce) for the band, strawberry for every other stripe. Then add Fresh Strawberry (0.75 pound) for the top of the hat and Fresh Raspberries (10 ounce) for the brim. Use a dab of frosting to "glue" the three stars on the hat, then cut one star in half and add it to the edge of the band.
Fill a pastry bag with the reserved frosting and pipe on the white stripes, then serve!