This question was a bit vague but I am guessing that you want to tie your main stalk down to create more "tops" so to speak. You could use a twig with a small branch growing off it. Cut the branch about an inch from the twig. Then sharpen the other end and shove into your medium. You can then hook your twine to the twig end which should resemble a tent stake. This method works well outdoors as the branch will blend nicely with surrounding growth, A nice shiney hook could very easily alert an eye in the sky should the sun be hitting it just the right way...yesca