Make layer of candy bark. Melt Red and Dark Green Candy Melts candy, separately, according to package directions.
Prepare two decorating bags, separately, with melted Red and Dark Green candy. Cut ½ in. off tip of bag.
Alternating colors, pipe ½ in. horizontal stripes across cookie sheet. Chill until set, about 10 minutes.
Prepare candy bark toppings.Using a sharp knife, cut chocolate sandwich cookies and peanut butter cups in half.
Carefully break pretzel sticks and twists in half.
Using a sharp knife, cut small triangles (for snowman noses) from Orange Candy Melts candy wafers.
Melt cocoa and white candy. Melt Bright White and Light Cocoa Candy Melts candy, separately, according to package directions.
Prepare two decorating bags, separately, with melted Bright White and Light Cocoa candy. Cut ½ in. off tip of bag.
Starting with Light Cocoa candy, pipe 3 in. vertical stripe over red and green stripes. Repeat with Bright White candy. Continue, alternating colors, until pan is full.
Before candy sets, sprinkle the red, green and white sprinkles mix along the perimeter of the pan and down the separation of each candy.
Decorate candy bark.While the candy is still soft, place decorations as follows:
Reindeer:<.b> In the Light Cocoa candy sections, place broken pretzel twists for antlers. Place candy eyeballs under antlers and use Sugar Pearls from the sprinkles mix for the noses.
Snowmen: Place peanut butter cups, cut-side down, into Bright White candy; insert sandwich cookie, cut-side down, under peanut butter cup to form rim of hat. Place candy eyeballs under hat, then place candy noses. Use pretzel sticks for arms and Sugar Pearls from the sprinkles mix for the buttons.
Chill until completely set, about 20 to 30 minutes. Break into pieces before serving.