Windy City dinner fairy
Using the uncolored buttercream, pipe a spiral around the circumference of the cookie, starting in the middle until you reach the edge of the cookie.
Create a Christmas tree shape but piping a zig-zag vertically up the middle of the white buttercream, narrowing at the top. Use 1/4 tootsie roll as the stump on each of your Christmas tree shapes.
Sprinkle the green buttercream tree with your Christmas sprinkles., adding a gold sugar pearl sprinkle or star at the top of each tree.