Do you have a collection of those extra large take-out plastic drink cups? I just can't bear to throw them out because the plastic is the thick, strong kind that I intend to make into planters.... someday. Awhile ago I was looking at an upside-down empty cup and I imagined it as a Christmas tree. My husband thought it was another ploy to hoard more 'to-be-recycled' stuff. Well, here's a