$15aud worth of parts that just needs assembling and a base!! Should even be able to cut the large tree in half and shape the bottom to make 4, and there's going to be plenty of spare dowel for other projects!!

http://www.kmart.com.au/product/3-pack-bottle-brush-trees---assorted/1813866

https://www.bunnings.com.au/porta-12mm-x-1-2m-clear-pine-dowel_p8493946

https://www.bunnings.com.au/porta-16mm-x-1-2m-clear-pine-dowel_p8493962