This poinsettia is made out of a can of soda. Go figure.
Here's another example of soda can ornaments.
Here's another one. This one is glittery.
Ok so here's a quick tutorial on how to make one.
Drink some soda pop and cut out the top and bottom.
Trace a star shape onto the aluminum and cut that shape out.
See this is all you need.
Use something to crimp folds into the star shape.
Here is a five point star.
Here is a six point star. This one became the poinsettia. Notice that I primed it.
I painted them red and used puff paint for the centers.
Your last step is poking holes through them with a nail and hanging them.