Step 4: Stack the pieces
Once the glue has dried completely on the base, thread the pieces onto the dowel, starting with the largest.
For a very 3-dimensional tree, stack each piece at a 30 to 60 degree rotation from the one below. I liked the look better when any curved pieces were curving up, not down.
Gluing the pieces on is optional. I preferred to leave mine unglued. This way I can adjust it to my liking, and for storage, I can push them into a more 2-dimensional arrangement, to take up less space. I suppose I could even take it apart and store it that way.
Check to see how much dowel the starfish needs to stay on securely. Trim the dowel and place the starfish on top.