Repeat the steps with a second dollar bill to create another identically folded unit. Flip your completed dollar bill shuriken over and thread a wide grosgrain ribbon through the back. Alternate money origami ninja stars with stars made from regular origami paper to make a garland of the desired length. Making an origami ninja star is easier with square, crisp origami paper than it is with money. For more advanced money origami projects, try an origami money tree or kusudama flower.