These 3D stacked cookie trees are fun and easy to make, and could be decorated in many different ways, but would also look great even without decoration! I used a gingerbread recipe for these ones, but they also work well with sugar cookies. I used cookie cutters from the Wilton Christmas Cookie Tree Kit, but you could use any series of concentric star or even snowflake or round cookie cutters. I only used about half the cookie set on these small trees, but made my trees taller by adding circular cookies between each layer of star cookie. I used a little bit of cookie icing to stick each layer together, making sure to let them dry overnight before packaging or moving them.